1 //===- ARMInstrThumb2.td - Thumb2 support for ARM -------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file describes the Thumb2 instruction set.
12 //===----------------------------------------------------------------------===//
14 // IT block predicate field
15 def it_pred : Operand<i32> {
16 let PrintMethod = "printMandatoryPredicateOperand";
19 // IT block condition mask
20 def it_mask : Operand<i32> {
21 let PrintMethod = "printThumbITMask";
24 // Shifted operands. No register controlled shifts for Thumb2.
25 // Note: We do not support rrx shifted operands yet.
26 def t2_so_reg : Operand<i32>, // reg imm
27 ComplexPattern<i32, 2, "SelectT2ShifterOperandReg",
29 let EncoderMethod = "getT2SORegOpValue";
30 let PrintMethod = "printT2SOOperand";
31 let MIOperandInfo = (ops rGPR, i32imm);
34 // t2_so_imm_not_XFORM - Return the complement of a t2_so_imm value
35 def t2_so_imm_not_XFORM : SDNodeXForm<imm, [{
36 return CurDAG->getTargetConstant(~((uint32_t)N->getZExtValue()), MVT::i32);
39 // t2_so_imm_neg_XFORM - Return the negation of a t2_so_imm value
40 def t2_so_imm_neg_XFORM : SDNodeXForm<imm, [{
41 return CurDAG->getTargetConstant(-((int)N->getZExtValue()), MVT::i32);
44 // t2_so_imm - Match a 32-bit immediate operand, which is an
45 // 8-bit immediate rotated by an arbitrary number of bits, or an 8-bit
46 // immediate splatted into multiple bytes of the word.
47 def t2_so_imm_asmoperand : AsmOperandClass { let Name = "T2SOImm"; }
48 def t2_so_imm : Operand<i32>, ImmLeaf<i32, [{
49 return ARM_AM::getT2SOImmVal(Imm) != -1;
51 let ParserMatchClass = t2_so_imm_asmoperand;
52 let EncoderMethod = "getT2SOImmOpValue";
55 // t2_so_imm_not - Match an immediate that is a complement
57 def t2_so_imm_not : Operand<i32>,
59 return ARM_AM::getT2SOImmVal(~((uint32_t)N->getZExtValue())) != -1;
60 }], t2_so_imm_not_XFORM>;
62 // t2_so_imm_neg - Match an immediate that is a negation of a t2_so_imm.
63 def t2_so_imm_neg : Operand<i32>,
65 return ARM_AM::getT2SOImmVal(-((uint32_t)N->getZExtValue())) != -1;
66 }], t2_so_imm_neg_XFORM>;
68 /// imm1_31 predicate - True if the 32-bit immediate is in the range [1,31].
69 def imm1_31 : ImmLeaf<i32, [{
70 return (int32_t)Imm >= 1 && (int32_t)Imm < 32;
73 /// imm0_4095 predicate - True if the 32-bit immediate is in the range [0.4095].
74 def imm0_4095 : Operand<i32>,
76 return Imm >= 0 && Imm < 4096;
79 def imm0_4095_neg : PatLeaf<(i32 imm), [{
80 return (uint32_t)(-N->getZExtValue()) < 4096;
83 def imm0_255_neg : PatLeaf<(i32 imm), [{
84 return (uint32_t)(-N->getZExtValue()) < 255;
87 def imm0_255_not : PatLeaf<(i32 imm), [{
88 return (uint32_t)(~N->getZExtValue()) < 255;
91 def lo5AllOne : PatLeaf<(i32 imm), [{
92 // Returns true if all low 5-bits are 1.
93 return (((uint32_t)N->getZExtValue()) & 0x1FUL) == 0x1FUL;
96 // Define Thumb2 specific addressing modes.
98 // t2addrmode_imm12 := reg + imm12
99 def t2addrmode_imm12 : Operand<i32>,
100 ComplexPattern<i32, 2, "SelectT2AddrModeImm12", []> {
101 let PrintMethod = "printAddrModeImm12Operand";
102 let EncoderMethod = "getAddrModeImm12OpValue";
103 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
106 // t2ldrlabel := imm12
107 def t2ldrlabel : Operand<i32> {
108 let EncoderMethod = "getAddrModeImm12OpValue";
112 // ADR instruction labels.
113 def t2adrlabel : Operand<i32> {
114 let EncoderMethod = "getT2AdrLabelOpValue";
118 // t2addrmode_imm8 := reg +/- imm8
119 def MemImm8OffsetAsmOperand : AsmOperandClass { let Name = "MemImm8Offset"; }
120 def t2addrmode_imm8 : Operand<i32>,
121 ComplexPattern<i32, 2, "SelectT2AddrModeImm8", []> {
122 let PrintMethod = "printT2AddrModeImm8Operand";
123 let EncoderMethod = "getT2AddrModeImm8OpValue";
124 let ParserMatchClass = MemImm8OffsetAsmOperand;
125 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
128 def t2am_imm8_offset : Operand<i32>,
129 ComplexPattern<i32, 1, "SelectT2AddrModeImm8Offset",
130 [], [SDNPWantRoot]> {
131 let PrintMethod = "printT2AddrModeImm8OffsetOperand";
132 let EncoderMethod = "getT2AddrModeImm8OffsetOpValue";
135 // t2addrmode_imm8s4 := reg +/- (imm8 << 2)
136 def t2addrmode_imm8s4 : Operand<i32> {
137 let PrintMethod = "printT2AddrModeImm8s4Operand";
138 let EncoderMethod = "getT2AddrModeImm8s4OpValue";
139 let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
142 def t2am_imm8s4_offset : Operand<i32> {
143 let PrintMethod = "printT2AddrModeImm8s4OffsetOperand";
144 let DecoderMethod = "DecodeT2Imm8S4";
147 // t2addrmode_so_reg := reg + (reg << imm2)
148 def t2addrmode_so_reg : Operand<i32>,
149 ComplexPattern<i32, 3, "SelectT2AddrModeSoReg", []> {
150 let PrintMethod = "printT2AddrModeSoRegOperand";
151 let EncoderMethod = "getT2AddrModeSORegOpValue";
152 let MIOperandInfo = (ops GPR:$base, rGPR:$offsreg, i32imm:$offsimm);
155 // t2addrmode_reg := reg
156 // Used by load/store exclusive instructions. Useful to enable right assembly
157 // parsing and printing. Not used for any codegen matching.
159 def t2addrmode_reg : Operand<i32> {
160 let PrintMethod = "printAddrMode7Operand";
161 let MIOperandInfo = (ops GPR);
164 //===----------------------------------------------------------------------===//
165 // Multiclass helpers...
169 class T2OneRegImm<dag oops, dag iops, InstrItinClass itin,
170 string opc, string asm, list<dag> pattern>
171 : T2I<oops, iops, itin, opc, asm, pattern> {
176 let Inst{26} = imm{11};
177 let Inst{14-12} = imm{10-8};
178 let Inst{7-0} = imm{7-0};
182 class T2sOneRegImm<dag oops, dag iops, InstrItinClass itin,
183 string opc, string asm, list<dag> pattern>
184 : T2sI<oops, iops, itin, opc, asm, pattern> {
190 let Inst{26} = imm{11};
191 let Inst{14-12} = imm{10-8};
192 let Inst{7-0} = imm{7-0};
195 class T2OneRegCmpImm<dag oops, dag iops, InstrItinClass itin,
196 string opc, string asm, list<dag> pattern>
197 : T2I<oops, iops, itin, opc, asm, pattern> {
201 let Inst{19-16} = Rn;
202 let Inst{26} = imm{11};
203 let Inst{14-12} = imm{10-8};
204 let Inst{7-0} = imm{7-0};
208 class T2OneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
209 string opc, string asm, list<dag> pattern>
210 : T2I<oops, iops, itin, opc, asm, pattern> {
215 let Inst{3-0} = ShiftedRm{3-0};
216 let Inst{5-4} = ShiftedRm{6-5};
217 let Inst{14-12} = ShiftedRm{11-9};
218 let Inst{7-6} = ShiftedRm{8-7};
221 class T2sOneRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
222 string opc, string asm, list<dag> pattern>
223 : T2sI<oops, iops, itin, opc, asm, pattern> {
228 let Inst{3-0} = ShiftedRm{3-0};
229 let Inst{5-4} = ShiftedRm{6-5};
230 let Inst{14-12} = ShiftedRm{11-9};
231 let Inst{7-6} = ShiftedRm{8-7};
234 class T2OneRegCmpShiftedReg<dag oops, dag iops, InstrItinClass itin,
235 string opc, string asm, list<dag> pattern>
236 : T2I<oops, iops, itin, opc, asm, pattern> {
240 let Inst{19-16} = Rn;
241 let Inst{3-0} = ShiftedRm{3-0};
242 let Inst{5-4} = ShiftedRm{6-5};
243 let Inst{14-12} = ShiftedRm{11-9};
244 let Inst{7-6} = ShiftedRm{8-7};
247 class T2TwoReg<dag oops, dag iops, InstrItinClass itin,
248 string opc, string asm, list<dag> pattern>
249 : T2I<oops, iops, itin, opc, asm, pattern> {
257 class T2sTwoReg<dag oops, dag iops, InstrItinClass itin,
258 string opc, string asm, list<dag> pattern>
259 : T2sI<oops, iops, itin, opc, asm, pattern> {
267 class T2TwoRegCmp<dag oops, dag iops, InstrItinClass itin,
268 string opc, string asm, list<dag> pattern>
269 : T2I<oops, iops, itin, opc, asm, pattern> {
273 let Inst{19-16} = Rn;
278 class T2TwoRegImm<dag oops, dag iops, InstrItinClass itin,
279 string opc, string asm, list<dag> pattern>
280 : T2I<oops, iops, itin, opc, asm, pattern> {
286 let Inst{19-16} = Rn;
287 let Inst{26} = imm{11};
288 let Inst{14-12} = imm{10-8};
289 let Inst{7-0} = imm{7-0};
292 class T2sTwoRegImm<dag oops, dag iops, InstrItinClass itin,
293 string opc, string asm, list<dag> pattern>
294 : T2sI<oops, iops, itin, opc, asm, pattern> {
300 let Inst{19-16} = Rn;
301 let Inst{26} = imm{11};
302 let Inst{14-12} = imm{10-8};
303 let Inst{7-0} = imm{7-0};
306 class T2TwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
307 string opc, string asm, list<dag> pattern>
308 : T2I<oops, iops, itin, opc, asm, pattern> {
315 let Inst{14-12} = imm{4-2};
316 let Inst{7-6} = imm{1-0};
319 class T2sTwoRegShiftImm<dag oops, dag iops, InstrItinClass itin,
320 string opc, string asm, list<dag> pattern>
321 : T2sI<oops, iops, itin, opc, asm, pattern> {
328 let Inst{14-12} = imm{4-2};
329 let Inst{7-6} = imm{1-0};
332 class T2ThreeReg<dag oops, dag iops, InstrItinClass itin,
333 string opc, string asm, list<dag> pattern>
334 : T2I<oops, iops, itin, opc, asm, pattern> {
340 let Inst{19-16} = Rn;
344 class T2sThreeReg<dag oops, dag iops, InstrItinClass itin,
345 string opc, string asm, list<dag> pattern>
346 : T2sI<oops, iops, itin, opc, asm, pattern> {
352 let Inst{19-16} = Rn;
356 class T2TwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
357 string opc, string asm, list<dag> pattern>
358 : T2I<oops, iops, itin, opc, asm, pattern> {
364 let Inst{19-16} = Rn;
365 let Inst{3-0} = ShiftedRm{3-0};
366 let Inst{5-4} = ShiftedRm{6-5};
367 let Inst{14-12} = ShiftedRm{11-9};
368 let Inst{7-6} = ShiftedRm{8-7};
371 class T2sTwoRegShiftedReg<dag oops, dag iops, InstrItinClass itin,
372 string opc, string asm, list<dag> pattern>
373 : T2sI<oops, iops, itin, opc, asm, pattern> {
379 let Inst{19-16} = Rn;
380 let Inst{3-0} = ShiftedRm{3-0};
381 let Inst{5-4} = ShiftedRm{6-5};
382 let Inst{14-12} = ShiftedRm{11-9};
383 let Inst{7-6} = ShiftedRm{8-7};
386 class T2FourReg<dag oops, dag iops, InstrItinClass itin,
387 string opc, string asm, list<dag> pattern>
388 : T2I<oops, iops, itin, opc, asm, pattern> {
394 let Inst{19-16} = Rn;
395 let Inst{15-12} = Ra;
400 class T2MulLong<bits<3> opc22_20, bits<4> opc7_4,
401 dag oops, dag iops, InstrItinClass itin,
402 string opc, string asm, list<dag> pattern>
403 : T2I<oops, iops, itin, opc, asm, pattern> {
409 let Inst{31-23} = 0b111110111;
410 let Inst{22-20} = opc22_20;
411 let Inst{19-16} = Rn;
412 let Inst{15-12} = RdLo;
413 let Inst{11-8} = RdHi;
414 let Inst{7-4} = opc7_4;
419 /// T2I_un_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
420 /// unary operation that produces a value. These are predicable and can be
421 /// changed to modify CPSR.
422 multiclass T2I_un_irs<bits<4> opcod, string opc,
423 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
424 PatFrag opnode, bit Cheap = 0, bit ReMat = 0> {
426 def i : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), iii,
428 [(set rGPR:$Rd, (opnode t2_so_imm:$imm))]> {
429 let isAsCheapAsAMove = Cheap;
430 let isReMaterializable = ReMat;
431 let Inst{31-27} = 0b11110;
433 let Inst{24-21} = opcod;
434 let Inst{19-16} = 0b1111; // Rn
438 def r : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), iir,
440 [(set rGPR:$Rd, (opnode rGPR:$Rm))]> {
441 let Inst{31-27} = 0b11101;
442 let Inst{26-25} = 0b01;
443 let Inst{24-21} = opcod;
444 let Inst{19-16} = 0b1111; // Rn
445 let Inst{14-12} = 0b000; // imm3
446 let Inst{7-6} = 0b00; // imm2
447 let Inst{5-4} = 0b00; // type
450 def s : T2sOneRegShiftedReg<(outs rGPR:$Rd), (ins t2_so_reg:$ShiftedRm), iis,
451 opc, ".w\t$Rd, $ShiftedRm",
452 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm))]> {
453 let Inst{31-27} = 0b11101;
454 let Inst{26-25} = 0b01;
455 let Inst{24-21} = opcod;
456 let Inst{19-16} = 0b1111; // Rn
460 /// T2I_bin_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns for a
461 /// binary operation that produces a value. These are predicable and can be
462 /// changed to modify CPSR.
463 multiclass T2I_bin_irs<bits<4> opcod, string opc,
464 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
465 PatFrag opnode, string baseOpc, bit Commutable = 0,
468 def ri : T2sTwoRegImm<
469 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), iii,
470 opc, "\t$Rd, $Rn, $imm",
471 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]> {
472 let Inst{31-27} = 0b11110;
474 let Inst{24-21} = opcod;
478 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), iir,
479 opc, !strconcat(wide, "\t$Rd, $Rn, $Rm"),
480 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
481 let isCommutable = Commutable;
482 let Inst{31-27} = 0b11101;
483 let Inst{26-25} = 0b01;
484 let Inst{24-21} = opcod;
485 let Inst{14-12} = 0b000; // imm3
486 let Inst{7-6} = 0b00; // imm2
487 let Inst{5-4} = 0b00; // type
490 def rs : T2sTwoRegShiftedReg<
491 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm), iis,
492 opc, !strconcat(wide, "\t$Rd, $Rn, $ShiftedRm"),
493 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]> {
494 let Inst{31-27} = 0b11101;
495 let Inst{26-25} = 0b01;
496 let Inst{24-21} = opcod;
498 // Assembly aliases for optional destination operand when it's the same
499 // as the source operand.
500 def : InstAlias<!strconcat(opc, "${s}${p} $Rdn, $imm"),
501 (!cast<Instruction>(!strconcat(baseOpc, "ri")) rGPR:$Rdn, rGPR:$Rdn,
502 t2_so_imm:$imm, pred:$p,
504 Requires<[IsThumb2]>;
505 def : InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $Rm"),
506 (!cast<Instruction>(!strconcat(baseOpc, "rr")) rGPR:$Rdn, rGPR:$Rdn,
509 Requires<[IsThumb2]>;
510 def : InstAlias<!strconcat(opc, "${s}${p}", wide, " $Rdn, $shift"),
511 (!cast<Instruction>(!strconcat(baseOpc, "rs")) rGPR:$Rdn, rGPR:$Rdn,
512 t2_so_reg:$shift, pred:$p,
514 Requires<[IsThumb2]>;
517 /// T2I_bin_w_irs - Same as T2I_bin_irs except these operations need
518 // the ".w" suffix to indicate that they are wide.
519 multiclass T2I_bin_w_irs<bits<4> opcod, string opc,
520 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
521 PatFrag opnode, string baseOpc, bit Commutable = 0> :
522 T2I_bin_irs<opcod, opc, iii, iir, iis, opnode, baseOpc, Commutable, ".w">;
524 /// T2I_rbin_is - Same as T2I_bin_irs except the order of operands are
525 /// reversed. The 'rr' form is only defined for the disassembler; for codegen
526 /// it is equivalent to the T2I_bin_irs counterpart.
527 multiclass T2I_rbin_irs<bits<4> opcod, string opc, PatFrag opnode> {
529 def ri : T2sTwoRegImm<
530 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
531 opc, ".w\t$Rd, $Rn, $imm",
532 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
533 let Inst{31-27} = 0b11110;
535 let Inst{24-21} = opcod;
539 def rr : T2sThreeReg<
540 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
541 opc, "\t$Rd, $Rn, $Rm",
542 [/* For disassembly only; pattern left blank */]> {
543 let Inst{31-27} = 0b11101;
544 let Inst{26-25} = 0b01;
545 let Inst{24-21} = opcod;
546 let Inst{14-12} = 0b000; // imm3
547 let Inst{7-6} = 0b00; // imm2
548 let Inst{5-4} = 0b00; // type
551 def rs : T2sTwoRegShiftedReg<
552 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
553 IIC_iALUsir, opc, "\t$Rd, $Rn, $ShiftedRm",
554 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
555 let Inst{31-27} = 0b11101;
556 let Inst{26-25} = 0b01;
557 let Inst{24-21} = opcod;
561 /// T2I_bin_s_irs - Similar to T2I_bin_irs except it sets the 's' bit so the
562 /// instruction modifies the CPSR register.
563 let isCodeGenOnly = 1, Defs = [CPSR] in {
564 multiclass T2I_bin_s_irs<bits<4> opcod, string opc,
565 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
566 PatFrag opnode, bit Commutable = 0> {
568 def ri : T2TwoRegImm<
569 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), iii,
570 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
571 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
572 let Inst{31-27} = 0b11110;
574 let Inst{24-21} = opcod;
575 let Inst{20} = 1; // The S bit.
580 (outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), iir,
581 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $Rm",
582 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
583 let isCommutable = Commutable;
584 let Inst{31-27} = 0b11101;
585 let Inst{26-25} = 0b01;
586 let Inst{24-21} = opcod;
587 let Inst{20} = 1; // The S bit.
588 let Inst{14-12} = 0b000; // imm3
589 let Inst{7-6} = 0b00; // imm2
590 let Inst{5-4} = 0b00; // type
593 def rs : T2TwoRegShiftedReg<
594 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
595 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $ShiftedRm",
596 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
597 let Inst{31-27} = 0b11101;
598 let Inst{26-25} = 0b01;
599 let Inst{24-21} = opcod;
600 let Inst{20} = 1; // The S bit.
605 /// T2I_bin_ii12rs - Defines a set of (op reg, {so_imm|imm0_4095|r|so_reg})
606 /// patterns for a binary operation that produces a value.
607 multiclass T2I_bin_ii12rs<bits<3> op23_21, string opc, PatFrag opnode,
608 bit Commutable = 0> {
610 // The register-immediate version is re-materializable. This is useful
611 // in particular for taking the address of a local.
612 let isReMaterializable = 1 in {
613 def ri : T2sTwoRegImm<
614 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
615 opc, ".w\t$Rd, $Rn, $imm",
616 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_imm:$imm))]> {
617 let Inst{31-27} = 0b11110;
620 let Inst{23-21} = op23_21;
626 (outs rGPR:$Rd), (ins GPR:$Rn, imm0_4095:$imm), IIC_iALUi,
627 !strconcat(opc, "w"), "\t$Rd, $Rn, $imm",
628 [(set rGPR:$Rd, (opnode GPR:$Rn, imm0_4095:$imm))]> {
632 let Inst{31-27} = 0b11110;
633 let Inst{26} = imm{11};
634 let Inst{25-24} = 0b10;
635 let Inst{23-21} = op23_21;
636 let Inst{20} = 0; // The S bit.
637 let Inst{19-16} = Rn;
639 let Inst{14-12} = imm{10-8};
641 let Inst{7-0} = imm{7-0};
644 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins GPR:$Rn, rGPR:$Rm), IIC_iALUr,
645 opc, ".w\t$Rd, $Rn, $Rm",
646 [(set rGPR:$Rd, (opnode GPR:$Rn, rGPR:$Rm))]> {
647 let isCommutable = Commutable;
648 let Inst{31-27} = 0b11101;
649 let Inst{26-25} = 0b01;
651 let Inst{23-21} = op23_21;
652 let Inst{14-12} = 0b000; // imm3
653 let Inst{7-6} = 0b00; // imm2
654 let Inst{5-4} = 0b00; // type
657 def rs : T2sTwoRegShiftedReg<
658 (outs rGPR:$Rd), (ins GPR:$Rn, t2_so_reg:$ShiftedRm),
659 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
660 [(set rGPR:$Rd, (opnode GPR:$Rn, t2_so_reg:$ShiftedRm))]> {
661 let Inst{31-27} = 0b11101;
662 let Inst{26-25} = 0b01;
664 let Inst{23-21} = op23_21;
668 /// T2I_adde_sube_irs - Defines a set of (op reg, {so_imm|r|so_reg}) patterns
669 /// for a binary operation that produces a value and use the carry
670 /// bit. It's not predicable.
671 let Uses = [CPSR] in {
672 multiclass T2I_adde_sube_irs<bits<4> opcod, string opc, PatFrag opnode,
673 bit Commutable = 0> {
675 def ri : T2sTwoRegImm<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
676 IIC_iALUi, opc, "\t$Rd, $Rn, $imm",
677 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>,
678 Requires<[IsThumb2]> {
679 let Inst{31-27} = 0b11110;
681 let Inst{24-21} = opcod;
685 def rr : T2sThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUr,
686 opc, ".w\t$Rd, $Rn, $Rm",
687 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]>,
688 Requires<[IsThumb2]> {
689 let isCommutable = Commutable;
690 let Inst{31-27} = 0b11101;
691 let Inst{26-25} = 0b01;
692 let Inst{24-21} = opcod;
693 let Inst{14-12} = 0b000; // imm3
694 let Inst{7-6} = 0b00; // imm2
695 let Inst{5-4} = 0b00; // type
698 def rs : T2sTwoRegShiftedReg<
699 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
700 IIC_iALUsi, opc, ".w\t$Rd, $Rn, $ShiftedRm",
701 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>,
702 Requires<[IsThumb2]> {
703 let Inst{31-27} = 0b11101;
704 let Inst{26-25} = 0b01;
705 let Inst{24-21} = opcod;
710 // Carry setting variants
711 // NOTE: CPSR def omitted because it will be handled by the custom inserter.
712 let usesCustomInserter = 1 in {
713 multiclass T2I_adde_sube_s_irs<PatFrag opnode, bit Commutable = 0> {
715 def ri : t2PseudoInst<(outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm),
717 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_imm:$imm))]>;
719 def rr : t2PseudoInst<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
721 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
722 let isCommutable = Commutable;
725 def rs : t2PseudoInst<
726 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
728 [(set rGPR:$Rd, (opnode rGPR:$Rn, t2_so_reg:$ShiftedRm))]>;
732 /// T2I_rbin_s_is - Same as T2I_rbin_irs except sets 's' bit and the register
733 /// version is not needed since this is only for codegen.
734 let isCodeGenOnly = 1, Defs = [CPSR] in {
735 multiclass T2I_rbin_s_is<bits<4> opcod, string opc, PatFrag opnode> {
737 def ri : T2TwoRegImm<
738 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_imm:$imm), IIC_iALUi,
739 !strconcat(opc, "s"), ".w\t$Rd, $Rn, $imm",
740 [(set rGPR:$Rd, (opnode t2_so_imm:$imm, rGPR:$Rn))]> {
741 let Inst{31-27} = 0b11110;
743 let Inst{24-21} = opcod;
744 let Inst{20} = 1; // The S bit.
748 def rs : T2TwoRegShiftedReg<
749 (outs rGPR:$Rd), (ins rGPR:$Rn, t2_so_reg:$ShiftedRm),
750 IIC_iALUsi, !strconcat(opc, "s"), "\t$Rd, $Rn, $ShiftedRm",
751 [(set rGPR:$Rd, (opnode t2_so_reg:$ShiftedRm, rGPR:$Rn))]> {
752 let Inst{31-27} = 0b11101;
753 let Inst{26-25} = 0b01;
754 let Inst{24-21} = opcod;
755 let Inst{20} = 1; // The S bit.
760 /// T2I_sh_ir - Defines a set of (op reg, {so_imm|r}) patterns for a shift /
761 // rotate operation that produces a value.
762 multiclass T2I_sh_ir<bits<2> opcod, string opc, PatFrag opnode> {
764 def ri : T2sTwoRegShiftImm<
765 (outs rGPR:$Rd), (ins rGPR:$Rm, i32imm:$imm), IIC_iMOVsi,
766 opc, ".w\t$Rd, $Rm, $imm",
767 [(set rGPR:$Rd, (opnode rGPR:$Rm, imm1_31:$imm))]> {
768 let Inst{31-27} = 0b11101;
769 let Inst{26-21} = 0b010010;
770 let Inst{19-16} = 0b1111; // Rn
771 let Inst{5-4} = opcod;
774 def rr : T2sThreeReg<
775 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMOVsr,
776 opc, ".w\t$Rd, $Rn, $Rm",
777 [(set rGPR:$Rd, (opnode rGPR:$Rn, rGPR:$Rm))]> {
778 let Inst{31-27} = 0b11111;
779 let Inst{26-23} = 0b0100;
780 let Inst{22-21} = opcod;
781 let Inst{15-12} = 0b1111;
782 let Inst{7-4} = 0b0000;
786 /// T2I_cmp_irs - Defines a set of (op r, {so_imm|r|so_reg}) cmp / test
787 /// patterns. Similar to T2I_bin_irs except the instruction does not produce
788 /// a explicit result, only implicitly set CPSR.
789 let isCompare = 1, Defs = [CPSR] in {
790 multiclass T2I_cmp_irs<bits<4> opcod, string opc,
791 InstrItinClass iii, InstrItinClass iir, InstrItinClass iis,
794 def ri : T2OneRegCmpImm<
795 (outs), (ins GPR:$Rn, t2_so_imm:$imm), iii,
796 opc, ".w\t$Rn, $imm",
797 [(opnode GPR:$Rn, t2_so_imm:$imm)]> {
798 let Inst{31-27} = 0b11110;
800 let Inst{24-21} = opcod;
801 let Inst{20} = 1; // The S bit.
803 let Inst{11-8} = 0b1111; // Rd
806 def rr : T2TwoRegCmp<
807 (outs), (ins GPR:$lhs, rGPR:$rhs), iir,
808 opc, ".w\t$lhs, $rhs",
809 [(opnode GPR:$lhs, rGPR:$rhs)]> {
810 let Inst{31-27} = 0b11101;
811 let Inst{26-25} = 0b01;
812 let Inst{24-21} = opcod;
813 let Inst{20} = 1; // The S bit.
814 let Inst{14-12} = 0b000; // imm3
815 let Inst{11-8} = 0b1111; // Rd
816 let Inst{7-6} = 0b00; // imm2
817 let Inst{5-4} = 0b00; // type
820 def rs : T2OneRegCmpShiftedReg<
821 (outs), (ins GPR:$Rn, t2_so_reg:$ShiftedRm), iis,
822 opc, ".w\t$Rn, $ShiftedRm",
823 [(opnode GPR:$Rn, t2_so_reg:$ShiftedRm)]> {
824 let Inst{31-27} = 0b11101;
825 let Inst{26-25} = 0b01;
826 let Inst{24-21} = opcod;
827 let Inst{20} = 1; // The S bit.
828 let Inst{11-8} = 0b1111; // Rd
833 /// T2I_ld - Defines a set of (op r, {imm12|imm8|so_reg}) load patterns.
834 multiclass T2I_ld<bit signed, bits<2> opcod, string opc,
835 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
836 def i12 : T2Ii12<(outs GPR:$Rt), (ins t2addrmode_imm12:$addr), iii,
837 opc, ".w\t$Rt, $addr",
838 [(set GPR:$Rt, (opnode t2addrmode_imm12:$addr))]> {
839 let Inst{31-27} = 0b11111;
840 let Inst{26-25} = 0b00;
841 let Inst{24} = signed;
843 let Inst{22-21} = opcod;
844 let Inst{20} = 1; // load
847 let Inst{15-12} = Rt;
850 let addr{12} = 1; // add = TRUE
851 let Inst{19-16} = addr{16-13}; // Rn
852 let Inst{23} = addr{12}; // U
853 let Inst{11-0} = addr{11-0}; // imm
855 def i8 : T2Ii8 <(outs GPR:$Rt), (ins t2addrmode_imm8:$addr), iii,
857 [(set GPR:$Rt, (opnode t2addrmode_imm8:$addr))]> {
858 let Inst{31-27} = 0b11111;
859 let Inst{26-25} = 0b00;
860 let Inst{24} = signed;
862 let Inst{22-21} = opcod;
863 let Inst{20} = 1; // load
865 // Offset: index==TRUE, wback==FALSE
866 let Inst{10} = 1; // The P bit.
867 let Inst{8} = 0; // The W bit.
870 let Inst{15-12} = Rt;
873 let Inst{19-16} = addr{12-9}; // Rn
874 let Inst{9} = addr{8}; // U
875 let Inst{7-0} = addr{7-0}; // imm
877 def s : T2Iso <(outs GPR:$Rt), (ins t2addrmode_so_reg:$addr), iis,
878 opc, ".w\t$Rt, $addr",
879 [(set GPR:$Rt, (opnode t2addrmode_so_reg:$addr))]> {
880 let Inst{31-27} = 0b11111;
881 let Inst{26-25} = 0b00;
882 let Inst{24} = signed;
884 let Inst{22-21} = opcod;
885 let Inst{20} = 1; // load
886 let Inst{11-6} = 0b000000;
889 let Inst{15-12} = Rt;
892 let Inst{19-16} = addr{9-6}; // Rn
893 let Inst{3-0} = addr{5-2}; // Rm
894 let Inst{5-4} = addr{1-0}; // imm
897 // FIXME: Is the pci variant actually needed?
898 def pci : T2Ipc <(outs GPR:$Rt), (ins t2ldrlabel:$addr), iii,
899 opc, ".w\t$Rt, $addr",
900 [(set GPR:$Rt, (opnode (ARMWrapper tconstpool:$addr)))]> {
901 let isReMaterializable = 1;
902 let Inst{31-27} = 0b11111;
903 let Inst{26-25} = 0b00;
904 let Inst{24} = signed;
905 let Inst{23} = ?; // add = (U == '1')
906 let Inst{22-21} = opcod;
907 let Inst{20} = 1; // load
908 let Inst{19-16} = 0b1111; // Rn
911 let Inst{15-12} = Rt{3-0};
912 let Inst{11-0} = addr{11-0};
916 /// T2I_st - Defines a set of (op r, {imm12|imm8|so_reg}) store patterns.
917 multiclass T2I_st<bits<2> opcod, string opc,
918 InstrItinClass iii, InstrItinClass iis, PatFrag opnode> {
919 def i12 : T2Ii12<(outs), (ins GPR:$Rt, t2addrmode_imm12:$addr), iii,
920 opc, ".w\t$Rt, $addr",
921 [(opnode GPR:$Rt, t2addrmode_imm12:$addr)]> {
922 let Inst{31-27} = 0b11111;
923 let Inst{26-23} = 0b0001;
924 let Inst{22-21} = opcod;
925 let Inst{20} = 0; // !load
928 let Inst{15-12} = Rt;
931 let addr{12} = 1; // add = TRUE
932 let Inst{19-16} = addr{16-13}; // Rn
933 let Inst{23} = addr{12}; // U
934 let Inst{11-0} = addr{11-0}; // imm
936 def i8 : T2Ii8 <(outs), (ins GPR:$Rt, t2addrmode_imm8:$addr), iii,
938 [(opnode GPR:$Rt, t2addrmode_imm8:$addr)]> {
939 let Inst{31-27} = 0b11111;
940 let Inst{26-23} = 0b0000;
941 let Inst{22-21} = opcod;
942 let Inst{20} = 0; // !load
944 // Offset: index==TRUE, wback==FALSE
945 let Inst{10} = 1; // The P bit.
946 let Inst{8} = 0; // The W bit.
949 let Inst{15-12} = Rt;
952 let Inst{19-16} = addr{12-9}; // Rn
953 let Inst{9} = addr{8}; // U
954 let Inst{7-0} = addr{7-0}; // imm
956 def s : T2Iso <(outs), (ins GPR:$Rt, t2addrmode_so_reg:$addr), iis,
957 opc, ".w\t$Rt, $addr",
958 [(opnode GPR:$Rt, t2addrmode_so_reg:$addr)]> {
959 let Inst{31-27} = 0b11111;
960 let Inst{26-23} = 0b0000;
961 let Inst{22-21} = opcod;
962 let Inst{20} = 0; // !load
963 let Inst{11-6} = 0b000000;
966 let Inst{15-12} = Rt;
969 let Inst{19-16} = addr{9-6}; // Rn
970 let Inst{3-0} = addr{5-2}; // Rm
971 let Inst{5-4} = addr{1-0}; // imm
975 /// T2I_ext_rrot - A unary operation with two forms: one whose operand is a
976 /// register and one whose operand is a register rotated by 8/16/24.
977 class T2I_ext_rrot<bits<3> opcod, string opc, PatFrag opnode>
978 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
979 opc, ".w\t$Rd, $Rm$rot",
980 [(set rGPR:$Rd, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
981 Requires<[IsThumb2]> {
982 let Inst{31-27} = 0b11111;
983 let Inst{26-23} = 0b0100;
984 let Inst{22-20} = opcod;
985 let Inst{19-16} = 0b1111; // Rn
986 let Inst{15-12} = 0b1111;
990 let Inst{5-4} = rot{1-0}; // rotate
993 // UXTB16 - Requres T2ExtractPack, does not need the .w qualifier.
994 class T2I_ext_rrot_uxtb16<bits<3> opcod, string opc, PatFrag opnode>
995 : T2TwoReg<(outs rGPR:$dst), (ins rGPR:$Rm, rot_imm:$rot),
996 IIC_iEXTr, opc, "\t$dst, $Rm$rot",
997 [(set rGPR:$dst, (opnode (rotr rGPR:$Rm, rot_imm:$rot)))]>,
998 Requires<[HasT2ExtractPack, IsThumb2]> {
1000 let Inst{31-27} = 0b11111;
1001 let Inst{26-23} = 0b0100;
1002 let Inst{22-20} = opcod;
1003 let Inst{19-16} = 0b1111; // Rn
1004 let Inst{15-12} = 0b1111;
1006 let Inst{5-4} = rot;
1009 // SXTB16 - Requres T2ExtractPack, does not need the .w qualifier, no pattern
1011 class T2I_ext_rrot_sxtb16<bits<3> opcod, string opc>
1012 : T2TwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm, rot_imm:$rot), IIC_iEXTr,
1013 opc, "\t$Rd, $Rm$rot", []>,
1014 Requires<[IsThumb2, HasT2ExtractPack]> {
1016 let Inst{31-27} = 0b11111;
1017 let Inst{26-23} = 0b0100;
1018 let Inst{22-20} = opcod;
1019 let Inst{19-16} = 0b1111; // Rn
1020 let Inst{15-12} = 0b1111;
1022 let Inst{5-4} = rot;
1025 /// T2I_exta_rrot - A binary operation with two forms: one whose operand is a
1026 /// register and one whose operand is a register rotated by 8/16/24.
1027 class T2I_exta_rrot<bits<3> opcod, string opc, PatFrag opnode>
1028 : T2ThreeReg<(outs rGPR:$Rd),
1029 (ins rGPR:$Rn, rGPR:$Rm, rot_imm:$rot),
1030 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot",
1031 [(set rGPR:$Rd, (opnode rGPR:$Rn, (rotr rGPR:$Rm,rot_imm:$rot)))]>,
1032 Requires<[HasT2ExtractPack, IsThumb2]> {
1034 let Inst{31-27} = 0b11111;
1035 let Inst{26-23} = 0b0100;
1036 let Inst{22-20} = opcod;
1037 let Inst{15-12} = 0b1111;
1039 let Inst{5-4} = rot;
1042 class T2I_exta_rrot_np<bits<3> opcod, string opc>
1043 : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm,rot_imm:$rot),
1044 IIC_iEXTAsr, opc, "\t$Rd, $Rn, $Rm$rot", []> {
1046 let Inst{31-27} = 0b11111;
1047 let Inst{26-23} = 0b0100;
1048 let Inst{22-20} = opcod;
1049 let Inst{15-12} = 0b1111;
1051 let Inst{5-4} = rot;
1054 //===----------------------------------------------------------------------===//
1056 //===----------------------------------------------------------------------===//
1058 //===----------------------------------------------------------------------===//
1059 // Miscellaneous Instructions.
1062 class T2PCOneRegImm<dag oops, dag iops, InstrItinClass itin,
1063 string asm, list<dag> pattern>
1064 : T2XI<oops, iops, itin, asm, pattern> {
1068 let Inst{11-8} = Rd;
1069 let Inst{26} = label{11};
1070 let Inst{14-12} = label{10-8};
1071 let Inst{7-0} = label{7-0};
1074 // LEApcrel - Load a pc-relative address into a register without offending the
1076 def t2ADR : T2PCOneRegImm<(outs rGPR:$Rd),
1077 (ins t2adrlabel:$addr, pred:$p),
1078 IIC_iALUi, "adr{$p}.w\t$Rd, #$addr", []> {
1079 let Inst{31-27} = 0b11110;
1080 let Inst{25-24} = 0b10;
1081 // Inst{23:21} = '11' (add = FALSE) or '00' (add = TRUE)
1084 let Inst{19-16} = 0b1111; // Rn
1089 let Inst{11-8} = Rd;
1090 let Inst{23} = addr{12};
1091 let Inst{21} = addr{12};
1092 let Inst{26} = addr{11};
1093 let Inst{14-12} = addr{10-8};
1094 let Inst{7-0} = addr{7-0};
1097 let neverHasSideEffects = 1, isReMaterializable = 1 in
1098 def t2LEApcrel : t2PseudoInst<(outs rGPR:$Rd), (ins i32imm:$label, pred:$p),
1100 def t2LEApcrelJT : t2PseudoInst<(outs rGPR:$Rd),
1101 (ins i32imm:$label, nohash_imm:$id, pred:$p),
1106 //===----------------------------------------------------------------------===//
1107 // Load / store Instructions.
1111 let canFoldAsLoad = 1, isReMaterializable = 1 in
1112 defm t2LDR : T2I_ld<0, 0b10, "ldr", IIC_iLoad_i, IIC_iLoad_si,
1113 UnOpFrag<(load node:$Src)>>;
1115 // Loads with zero extension
1116 defm t2LDRH : T2I_ld<0, 0b01, "ldrh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1117 UnOpFrag<(zextloadi16 node:$Src)>>;
1118 defm t2LDRB : T2I_ld<0, 0b00, "ldrb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1119 UnOpFrag<(zextloadi8 node:$Src)>>;
1121 // Loads with sign extension
1122 defm t2LDRSH : T2I_ld<1, 0b01, "ldrsh", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1123 UnOpFrag<(sextloadi16 node:$Src)>>;
1124 defm t2LDRSB : T2I_ld<1, 0b00, "ldrsb", IIC_iLoad_bh_i, IIC_iLoad_bh_si,
1125 UnOpFrag<(sextloadi8 node:$Src)>>;
1127 let mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1 in {
1129 def t2LDRDi8 : T2Ii8s4<1, 0, 1, (outs rGPR:$Rt, rGPR:$Rt2),
1130 (ins t2addrmode_imm8s4:$addr),
1131 IIC_iLoad_d_i, "ldrd", "\t$Rt, $Rt2, $addr", []>;
1132 } // mayLoad = 1, neverHasSideEffects = 1, hasExtraDefRegAllocReq = 1
1134 // zextload i1 -> zextload i8
1135 def : T2Pat<(zextloadi1 t2addrmode_imm12:$addr),
1136 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1137 def : T2Pat<(zextloadi1 t2addrmode_imm8:$addr),
1138 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1139 def : T2Pat<(zextloadi1 t2addrmode_so_reg:$addr),
1140 (t2LDRBs t2addrmode_so_reg:$addr)>;
1141 def : T2Pat<(zextloadi1 (ARMWrapper tconstpool:$addr)),
1142 (t2LDRBpci tconstpool:$addr)>;
1144 // extload -> zextload
1145 // FIXME: Reduce the number of patterns by legalizing extload to zextload
1147 def : T2Pat<(extloadi1 t2addrmode_imm12:$addr),
1148 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1149 def : T2Pat<(extloadi1 t2addrmode_imm8:$addr),
1150 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1151 def : T2Pat<(extloadi1 t2addrmode_so_reg:$addr),
1152 (t2LDRBs t2addrmode_so_reg:$addr)>;
1153 def : T2Pat<(extloadi1 (ARMWrapper tconstpool:$addr)),
1154 (t2LDRBpci tconstpool:$addr)>;
1156 def : T2Pat<(extloadi8 t2addrmode_imm12:$addr),
1157 (t2LDRBi12 t2addrmode_imm12:$addr)>;
1158 def : T2Pat<(extloadi8 t2addrmode_imm8:$addr),
1159 (t2LDRBi8 t2addrmode_imm8:$addr)>;
1160 def : T2Pat<(extloadi8 t2addrmode_so_reg:$addr),
1161 (t2LDRBs t2addrmode_so_reg:$addr)>;
1162 def : T2Pat<(extloadi8 (ARMWrapper tconstpool:$addr)),
1163 (t2LDRBpci tconstpool:$addr)>;
1165 def : T2Pat<(extloadi16 t2addrmode_imm12:$addr),
1166 (t2LDRHi12 t2addrmode_imm12:$addr)>;
1167 def : T2Pat<(extloadi16 t2addrmode_imm8:$addr),
1168 (t2LDRHi8 t2addrmode_imm8:$addr)>;
1169 def : T2Pat<(extloadi16 t2addrmode_so_reg:$addr),
1170 (t2LDRHs t2addrmode_so_reg:$addr)>;
1171 def : T2Pat<(extloadi16 (ARMWrapper tconstpool:$addr)),
1172 (t2LDRHpci tconstpool:$addr)>;
1174 // FIXME: The destination register of the loads and stores can't be PC, but
1175 // can be SP. We need another regclass (similar to rGPR) to represent
1176 // that. Not a pressing issue since these are selected manually,
1181 let mayLoad = 1, neverHasSideEffects = 1 in {
1182 def t2LDR_PRE : T2Iidxldst<0, 0b10, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1183 (ins t2addrmode_imm8:$addr),
1184 AddrModeT2_i8, IndexModePre, IIC_iLoad_iu,
1185 "ldr", "\t$Rt, $addr!", "$addr.base = $Rn",
1188 def t2LDR_POST : T2Iidxldst<0, 0b10, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1189 (ins GPR:$base, t2am_imm8_offset:$addr),
1190 AddrModeT2_i8, IndexModePost, IIC_iLoad_iu,
1191 "ldr", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1194 def t2LDRB_PRE : T2Iidxldst<0, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1195 (ins t2addrmode_imm8:$addr),
1196 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1197 "ldrb", "\t$Rt, $addr!", "$addr.base = $Rn",
1199 def t2LDRB_POST : T2Iidxldst<0, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1200 (ins GPR:$base, t2am_imm8_offset:$addr),
1201 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1202 "ldrb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1205 def t2LDRH_PRE : T2Iidxldst<0, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1206 (ins t2addrmode_imm8:$addr),
1207 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1208 "ldrh", "\t$Rt, $addr!", "$addr.base = $Rn",
1210 def t2LDRH_POST : T2Iidxldst<0, 0b01, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1211 (ins GPR:$base, t2am_imm8_offset:$addr),
1212 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1213 "ldrh", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1216 def t2LDRSB_PRE : T2Iidxldst<1, 0b00, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1217 (ins t2addrmode_imm8:$addr),
1218 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1219 "ldrsb", "\t$Rt, $addr!", "$addr.base = $Rn",
1221 def t2LDRSB_POST : T2Iidxldst<1, 0b00, 1, 0, (outs GPR:$Rt, GPR:$Rn),
1222 (ins GPR:$base, t2am_imm8_offset:$addr),
1223 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1224 "ldrsb", "\t$Rt, [$Rn], $addr", "$base = $Rn",
1227 def t2LDRSH_PRE : T2Iidxldst<1, 0b01, 1, 1, (outs GPR:$Rt, GPR:$Rn),
1228 (ins t2addrmode_imm8:$addr),
1229 AddrModeT2_i8, IndexModePre, IIC_iLoad_bh_iu,
1230 "ldrsh", "\t$Rt, $addr!", "$addr.base = $Rn",
1232 def t2LDRSH_POST : T2Iidxldst<1, 0b01, 1, 0, (outs GPR:$dst, GPR:$Rn),
1233 (ins GPR:$base, t2am_imm8_offset:$addr),
1234 AddrModeT2_i8, IndexModePost, IIC_iLoad_bh_iu,
1235 "ldrsh", "\t$dst, [$Rn], $addr", "$base = $Rn",
1237 } // mayLoad = 1, neverHasSideEffects = 1
1239 // LDRT, LDRBT, LDRHT, LDRSBT, LDRSHT all have offset mode (PUW=0b110) and are
1240 // for disassembly only.
1241 // Ref: A8.6.57 LDR (immediate, Thumb) Encoding T4
1242 class T2IldT<bit signed, bits<2> type, string opc, InstrItinClass ii>
1243 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1244 "\t$Rt, $addr", []> {
1245 let Inst{31-27} = 0b11111;
1246 let Inst{26-25} = 0b00;
1247 let Inst{24} = signed;
1249 let Inst{22-21} = type;
1250 let Inst{20} = 1; // load
1252 let Inst{10-8} = 0b110; // PUW.
1256 let Inst{15-12} = Rt;
1257 let Inst{19-16} = addr{12-9};
1258 let Inst{7-0} = addr{7-0};
1261 def t2LDRT : T2IldT<0, 0b10, "ldrt", IIC_iLoad_i>;
1262 def t2LDRBT : T2IldT<0, 0b00, "ldrbt", IIC_iLoad_bh_i>;
1263 def t2LDRHT : T2IldT<0, 0b01, "ldrht", IIC_iLoad_bh_i>;
1264 def t2LDRSBT : T2IldT<1, 0b00, "ldrsbt", IIC_iLoad_bh_i>;
1265 def t2LDRSHT : T2IldT<1, 0b01, "ldrsht", IIC_iLoad_bh_i>;
1268 defm t2STR :T2I_st<0b10,"str", IIC_iStore_i, IIC_iStore_si,
1269 BinOpFrag<(store node:$LHS, node:$RHS)>>;
1270 defm t2STRB:T2I_st<0b00,"strb", IIC_iStore_bh_i, IIC_iStore_bh_si,
1271 BinOpFrag<(truncstorei8 node:$LHS, node:$RHS)>>;
1272 defm t2STRH:T2I_st<0b01,"strh", IIC_iStore_bh_i, IIC_iStore_bh_si,
1273 BinOpFrag<(truncstorei16 node:$LHS, node:$RHS)>>;
1276 let mayLoad = 1, neverHasSideEffects = 1, hasExtraSrcRegAllocReq = 1 in
1277 def t2STRDi8 : T2Ii8s4<1, 0, 0, (outs),
1278 (ins GPR:$Rt, GPR:$Rt2, t2addrmode_imm8s4:$addr),
1279 IIC_iStore_d_r, "strd", "\t$Rt, $Rt2, $addr", []>;
1282 def t2STR_PRE : T2Iidxldst<0, 0b10, 0, 1, (outs GPR:$base_wb),
1283 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1284 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1285 "str", "\t$Rt, [$Rn, $addr]!",
1286 "$Rn = $base_wb,@earlyclobber $base_wb",
1288 (pre_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1290 def t2STR_POST : T2Iidxldst<0, 0b10, 0, 0, (outs GPR:$base_wb),
1291 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1292 AddrModeT2_i8, IndexModePost, IIC_iStore_iu,
1293 "str", "\t$Rt, [$Rn], $addr",
1294 "$Rn = $base_wb,@earlyclobber $base_wb",
1296 (post_store GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1298 def t2STRH_PRE : T2Iidxldst<0, 0b01, 0, 1, (outs GPR:$base_wb),
1299 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1300 AddrModeT2_i8, IndexModePre, IIC_iStore_iu,
1301 "strh", "\t$Rt, [$Rn, $addr]!",
1302 "$Rn = $base_wb,@earlyclobber $base_wb",
1304 (pre_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1306 def t2STRH_POST : T2Iidxldst<0, 0b01, 0, 0, (outs GPR:$base_wb),
1307 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1308 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1309 "strh", "\t$Rt, [$Rn], $addr",
1310 "$Rn = $base_wb,@earlyclobber $base_wb",
1312 (post_truncsti16 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1314 def t2STRB_PRE : T2Iidxldst<0, 0b00, 0, 1, (outs GPR:$base_wb),
1315 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1316 AddrModeT2_i8, IndexModePre, IIC_iStore_bh_iu,
1317 "strb", "\t$Rt, [$Rn, $addr]!",
1318 "$Rn = $base_wb,@earlyclobber $base_wb",
1320 (pre_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1322 def t2STRB_POST : T2Iidxldst<0, 0b00, 0, 0, (outs GPR:$base_wb),
1323 (ins GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr),
1324 AddrModeT2_i8, IndexModePost, IIC_iStore_bh_iu,
1325 "strb", "\t$Rt, [$Rn], $addr",
1326 "$Rn = $base_wb,@earlyclobber $base_wb",
1328 (post_truncsti8 GPR:$Rt, GPR:$Rn, t2am_imm8_offset:$addr))]>;
1330 // STRT, STRBT, STRHT all have offset mode (PUW=0b110) and are for disassembly
1332 // Ref: A8.6.193 STR (immediate, Thumb) Encoding T4
1333 class T2IstT<bits<2> type, string opc, InstrItinClass ii>
1334 : T2Ii8<(outs rGPR:$Rt), (ins t2addrmode_imm8:$addr), ii, opc,
1335 "\t$Rt, $addr", []> {
1336 let Inst{31-27} = 0b11111;
1337 let Inst{26-25} = 0b00;
1338 let Inst{24} = 0; // not signed
1340 let Inst{22-21} = type;
1341 let Inst{20} = 0; // store
1343 let Inst{10-8} = 0b110; // PUW
1347 let Inst{15-12} = Rt;
1348 let Inst{19-16} = addr{12-9};
1349 let Inst{7-0} = addr{7-0};
1352 def t2STRT : T2IstT<0b10, "strt", IIC_iStore_i>;
1353 def t2STRBT : T2IstT<0b00, "strbt", IIC_iStore_bh_i>;
1354 def t2STRHT : T2IstT<0b01, "strht", IIC_iStore_bh_i>;
1356 // ldrd / strd pre / post variants
1357 // For disassembly only.
1359 def t2LDRD_PRE : T2Ii8s4Tied<1, 1, 1,
1360 (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1361 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1362 "ldrd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1364 def t2LDRD_POST : T2Ii8s4Tied<0, 1, 1,
1365 (outs rGPR:$Rt, rGPR:$Rt2, GPR:$wb),
1366 (ins GPR:$base, t2am_imm8s4_offset:$imm), IIC_iLoad_d_ru,
1367 "ldrd", "\t$Rt, $Rt2, [$base], $imm", []>;
1369 def t2STRD_PRE : T2Ii8s4Tied<1, 1, 0, (outs GPR:$wb),
1370 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1371 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base, $imm]!", []>;
1373 def t2STRD_POST : T2Ii8s4Tied<0, 1, 0, (outs GPR:$wb),
1374 (ins rGPR:$Rt, rGPR:$Rt2, GPR:$base, t2am_imm8s4_offset:$imm),
1375 IIC_iStore_d_ru, "strd", "\t$Rt, $Rt2, [$base], $imm", []>;
1377 // T2Ipl (Preload Data/Instruction) signals the memory system of possible future
1378 // data/instruction access. These are for disassembly only.
1379 // instr_write is inverted for Thumb mode: (prefetch 3) -> (preload 0),
1380 // (prefetch 1) -> (preload 2), (prefetch 2) -> (preload 1).
1381 multiclass T2Ipl<bits<1> write, bits<1> instr, string opc> {
1383 def i12 : T2Ii12<(outs), (ins t2addrmode_imm12:$addr), IIC_Preload, opc,
1385 [(ARMPreload t2addrmode_imm12:$addr, (i32 write), (i32 instr))]> {
1386 let Inst{31-25} = 0b1111100;
1387 let Inst{24} = instr;
1389 let Inst{21} = write;
1391 let Inst{15-12} = 0b1111;
1394 let addr{12} = 1; // add = TRUE
1395 let Inst{19-16} = addr{16-13}; // Rn
1396 let Inst{23} = addr{12}; // U
1397 let Inst{11-0} = addr{11-0}; // imm12
1400 def i8 : T2Ii8<(outs), (ins t2addrmode_imm8:$addr), IIC_Preload, opc,
1402 [(ARMPreload t2addrmode_imm8:$addr, (i32 write), (i32 instr))]> {
1403 let Inst{31-25} = 0b1111100;
1404 let Inst{24} = instr;
1405 let Inst{23} = 0; // U = 0
1407 let Inst{21} = write;
1409 let Inst{15-12} = 0b1111;
1410 let Inst{11-8} = 0b1100;
1413 let Inst{19-16} = addr{12-9}; // Rn
1414 let Inst{7-0} = addr{7-0}; // imm8
1417 def s : T2Iso<(outs), (ins t2addrmode_so_reg:$addr), IIC_Preload, opc,
1419 [(ARMPreload t2addrmode_so_reg:$addr, (i32 write), (i32 instr))]> {
1420 let Inst{31-25} = 0b1111100;
1421 let Inst{24} = instr;
1422 let Inst{23} = 0; // add = TRUE for T1
1424 let Inst{21} = write;
1426 let Inst{15-12} = 0b1111;
1427 let Inst{11-6} = 0000000;
1430 let Inst{19-16} = addr{9-6}; // Rn
1431 let Inst{3-0} = addr{5-2}; // Rm
1432 let Inst{5-4} = addr{1-0}; // imm2
1436 defm t2PLD : T2Ipl<0, 0, "pld">, Requires<[IsThumb2]>;
1437 defm t2PLDW : T2Ipl<1, 0, "pldw">, Requires<[IsThumb2,HasV7,HasMP]>;
1438 defm t2PLI : T2Ipl<0, 1, "pli">, Requires<[IsThumb2,HasV7]>;
1440 //===----------------------------------------------------------------------===//
1441 // Load / store multiple Instructions.
1444 multiclass thumb2_ldst_mult<string asm, InstrItinClass itin,
1445 InstrItinClass itin_upd, bit L_bit> {
1447 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1448 itin, !strconcat(asm, "ia${p}.w\t$Rn, $regs"), []> {
1452 let Inst{31-27} = 0b11101;
1453 let Inst{26-25} = 0b00;
1454 let Inst{24-23} = 0b01; // Increment After
1456 let Inst{21} = 0; // No writeback
1457 let Inst{20} = L_bit;
1458 let Inst{19-16} = Rn;
1459 let Inst{15-0} = regs;
1462 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1463 itin_upd, !strconcat(asm, "ia${p}.w\t$Rn!, $regs"), "$Rn = $wb", []> {
1467 let Inst{31-27} = 0b11101;
1468 let Inst{26-25} = 0b00;
1469 let Inst{24-23} = 0b01; // Increment After
1471 let Inst{21} = 1; // Writeback
1472 let Inst{20} = L_bit;
1473 let Inst{19-16} = Rn;
1474 let Inst{15-0} = regs;
1477 T2XI<(outs), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1478 itin, !strconcat(asm, "db${p}.w\t$Rn, $regs"), []> {
1482 let Inst{31-27} = 0b11101;
1483 let Inst{26-25} = 0b00;
1484 let Inst{24-23} = 0b10; // Decrement Before
1486 let Inst{21} = 0; // No writeback
1487 let Inst{20} = L_bit;
1488 let Inst{19-16} = Rn;
1489 let Inst{15-0} = regs;
1492 T2XIt<(outs GPR:$wb), (ins GPR:$Rn, pred:$p, reglist:$regs, variable_ops),
1493 itin_upd, !strconcat(asm, "db${p}.w\t$Rn, $regs"), "$Rn = $wb", []> {
1497 let Inst{31-27} = 0b11101;
1498 let Inst{26-25} = 0b00;
1499 let Inst{24-23} = 0b10; // Decrement Before
1501 let Inst{21} = 1; // Writeback
1502 let Inst{20} = L_bit;
1503 let Inst{19-16} = Rn;
1504 let Inst{15-0} = regs;
1508 let neverHasSideEffects = 1 in {
1510 let mayLoad = 1, hasExtraDefRegAllocReq = 1 in
1511 defm t2LDM : thumb2_ldst_mult<"ldm", IIC_iLoad_m, IIC_iLoad_mu, 1>;
1513 let mayStore = 1, hasExtraSrcRegAllocReq = 1 in
1514 defm t2STM : thumb2_ldst_mult<"stm", IIC_iStore_m, IIC_iStore_mu, 0>;
1516 } // neverHasSideEffects
1519 //===----------------------------------------------------------------------===//
1520 // Move Instructions.
1523 let neverHasSideEffects = 1 in
1524 def t2MOVr : T2sTwoReg<(outs GPR:$Rd), (ins GPR:$Rm), IIC_iMOVr,
1525 "mov", ".w\t$Rd, $Rm", []> {
1526 let Inst{31-27} = 0b11101;
1527 let Inst{26-25} = 0b01;
1528 let Inst{24-21} = 0b0010;
1529 let Inst{19-16} = 0b1111; // Rn
1530 let Inst{14-12} = 0b000;
1531 let Inst{7-4} = 0b0000;
1534 // AddedComplexity to ensure isel tries t2MOVi before t2MOVi16.
1535 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1,
1536 AddedComplexity = 1 in
1537 def t2MOVi : T2sOneRegImm<(outs rGPR:$Rd), (ins t2_so_imm:$imm), IIC_iMOVi,
1538 "mov", ".w\t$Rd, $imm",
1539 [(set rGPR:$Rd, t2_so_imm:$imm)]> {
1540 let Inst{31-27} = 0b11110;
1542 let Inst{24-21} = 0b0010;
1543 let Inst{19-16} = 0b1111; // Rn
1547 def : InstAlias<"mov${s}${p} $Rd, $imm", (t2MOVi rGPR:$Rd, t2_so_imm:$imm,
1548 pred:$p, cc_out:$s)>,
1549 Requires<[IsThumb2]>;
1551 let isReMaterializable = 1, isAsCheapAsAMove = 1, isMoveImm = 1 in
1552 def t2MOVi16 : T2I<(outs rGPR:$Rd), (ins imm0_65535_expr:$imm), IIC_iMOVi,
1553 "movw", "\t$Rd, $imm",
1554 [(set rGPR:$Rd, imm0_65535:$imm)]> {
1555 let Inst{31-27} = 0b11110;
1557 let Inst{24-21} = 0b0010;
1558 let Inst{20} = 0; // The S bit.
1564 let Inst{11-8} = Rd;
1565 let Inst{19-16} = imm{15-12};
1566 let Inst{26} = imm{11};
1567 let Inst{14-12} = imm{10-8};
1568 let Inst{7-0} = imm{7-0};
1571 def t2MOVi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1572 (ins i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1574 let Constraints = "$src = $Rd" in {
1575 def t2MOVTi16 : T2I<(outs rGPR:$Rd),
1576 (ins rGPR:$src, imm0_65535_expr:$imm), IIC_iMOVi,
1577 "movt", "\t$Rd, $imm",
1579 (or (and rGPR:$src, 0xffff), lo16AllZero:$imm))]> {
1580 let Inst{31-27} = 0b11110;
1582 let Inst{24-21} = 0b0110;
1583 let Inst{20} = 0; // The S bit.
1589 let Inst{11-8} = Rd;
1590 let Inst{19-16} = imm{15-12};
1591 let Inst{26} = imm{11};
1592 let Inst{14-12} = imm{10-8};
1593 let Inst{7-0} = imm{7-0};
1596 def t2MOVTi16_ga_pcrel : PseudoInst<(outs rGPR:$Rd),
1597 (ins rGPR:$src, i32imm:$addr, pclabel:$id), IIC_iMOVi, []>;
1600 def : T2Pat<(or rGPR:$src, 0xffff0000), (t2MOVTi16 rGPR:$src, 0xffff)>;
1602 //===----------------------------------------------------------------------===//
1603 // Extend Instructions.
1608 def t2SXTB : T2I_ext_rrot<0b100, "sxtb",
1609 UnOpFrag<(sext_inreg node:$Src, i8)>>;
1610 def t2SXTH : T2I_ext_rrot<0b000, "sxth",
1611 UnOpFrag<(sext_inreg node:$Src, i16)>>;
1612 def t2SXTB16 : T2I_ext_rrot_sxtb16<0b010, "sxtb16">;
1614 def t2SXTAB : T2I_exta_rrot<0b100, "sxtab",
1615 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS, i8))>>;
1616 def t2SXTAH : T2I_exta_rrot<0b000, "sxtah",
1617 BinOpFrag<(add node:$LHS, (sext_inreg node:$RHS,i16))>>;
1618 def t2SXTAB16 : T2I_exta_rrot_np<0b010, "sxtab16">;
1620 // TODO: SXT(A){B|H}16
1624 let AddedComplexity = 16 in {
1625 def t2UXTB : T2I_ext_rrot<0b101, "uxtb",
1626 UnOpFrag<(and node:$Src, 0x000000FF)>>;
1627 def t2UXTH : T2I_ext_rrot<0b001, "uxth",
1628 UnOpFrag<(and node:$Src, 0x0000FFFF)>>;
1629 def t2UXTB16 : T2I_ext_rrot_uxtb16<0b011, "uxtb16",
1630 UnOpFrag<(and node:$Src, 0x00FF00FF)>>;
1632 // FIXME: This pattern incorrectly assumes the shl operator is a rotate.
1633 // The transformation should probably be done as a combiner action
1634 // instead so we can include a check for masking back in the upper
1635 // eight bits of the source into the lower eight bits of the result.
1636 //def : T2Pat<(and (shl rGPR:$Src, (i32 8)), 0xFF00FF),
1637 // (t2UXTB16 rGPR:$Src, 3)>,
1638 // Requires<[HasT2ExtractPack, IsThumb2]>;
1639 def : T2Pat<(and (srl rGPR:$Src, (i32 8)), 0xFF00FF),
1640 (t2UXTB16 rGPR:$Src, 1)>,
1641 Requires<[HasT2ExtractPack, IsThumb2]>;
1643 def t2UXTAB : T2I_exta_rrot<0b101, "uxtab",
1644 BinOpFrag<(add node:$LHS, (and node:$RHS, 0x00FF))>>;
1645 def t2UXTAH : T2I_exta_rrot<0b001, "uxtah",
1646 BinOpFrag<(add node:$LHS, (and node:$RHS, 0xFFFF))>>;
1647 def t2UXTAB16 : T2I_exta_rrot_np<0b011, "uxtab16">;
1650 //===----------------------------------------------------------------------===//
1651 // Arithmetic Instructions.
1654 defm t2ADD : T2I_bin_ii12rs<0b000, "add",
1655 BinOpFrag<(add node:$LHS, node:$RHS)>, 1>;
1656 defm t2SUB : T2I_bin_ii12rs<0b101, "sub",
1657 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1659 // ADD and SUB with 's' bit set. No 12-bit immediate (T4) variants.
1660 defm t2ADDS : T2I_bin_s_irs <0b1000, "add",
1661 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1662 BinOpFrag<(addc node:$LHS, node:$RHS)>, 1>;
1663 defm t2SUBS : T2I_bin_s_irs <0b1101, "sub",
1664 IIC_iALUi, IIC_iALUr, IIC_iALUsi,
1665 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1667 defm t2ADC : T2I_adde_sube_irs<0b1010, "adc",
1668 BinOpFrag<(adde_dead_carry node:$LHS, node:$RHS)>, 1>;
1669 defm t2SBC : T2I_adde_sube_irs<0b1011, "sbc",
1670 BinOpFrag<(sube_dead_carry node:$LHS, node:$RHS)>>;
1671 defm t2ADCS : T2I_adde_sube_s_irs<BinOpFrag<(adde_live_carry node:$LHS,
1673 defm t2SBCS : T2I_adde_sube_s_irs<BinOpFrag<(sube_live_carry node:$LHS,
1677 defm t2RSB : T2I_rbin_irs <0b1110, "rsb",
1678 BinOpFrag<(sub node:$LHS, node:$RHS)>>;
1679 defm t2RSBS : T2I_rbin_s_is <0b1110, "rsb",
1680 BinOpFrag<(subc node:$LHS, node:$RHS)>>;
1682 // (sub X, imm) gets canonicalized to (add X, -imm). Match this form.
1683 // The assume-no-carry-in form uses the negation of the input since add/sub
1684 // assume opposite meanings of the carry flag (i.e., carry == !borrow).
1685 // See the definition of AddWithCarry() in the ARM ARM A2.2.1 for the gory
1687 // The AddedComplexity preferences the first variant over the others since
1688 // it can be shrunk to a 16-bit wide encoding, while the others cannot.
1689 let AddedComplexity = 1 in
1690 def : T2Pat<(add GPR:$src, imm0_255_neg:$imm),
1691 (t2SUBri GPR:$src, imm0_255_neg:$imm)>;
1692 def : T2Pat<(add GPR:$src, t2_so_imm_neg:$imm),
1693 (t2SUBri GPR:$src, t2_so_imm_neg:$imm)>;
1694 def : T2Pat<(add GPR:$src, imm0_4095_neg:$imm),
1695 (t2SUBri12 GPR:$src, imm0_4095_neg:$imm)>;
1696 let AddedComplexity = 1 in
1697 def : T2Pat<(addc rGPR:$src, imm0_255_neg:$imm),
1698 (t2SUBSri rGPR:$src, imm0_255_neg:$imm)>;
1699 def : T2Pat<(addc rGPR:$src, t2_so_imm_neg:$imm),
1700 (t2SUBSri rGPR:$src, t2_so_imm_neg:$imm)>;
1701 // The with-carry-in form matches bitwise not instead of the negation.
1702 // Effectively, the inverse interpretation of the carry flag already accounts
1703 // for part of the negation.
1704 let AddedComplexity = 1 in
1705 def : T2Pat<(adde_dead_carry rGPR:$src, imm0_255_not:$imm),
1706 (t2SBCri rGPR:$src, imm0_255_not:$imm)>;
1707 def : T2Pat<(adde_dead_carry rGPR:$src, t2_so_imm_not:$imm),
1708 (t2SBCri rGPR:$src, t2_so_imm_not:$imm)>;
1709 let AddedComplexity = 1 in
1710 def : T2Pat<(adde_live_carry rGPR:$src, imm0_255_not:$imm),
1711 (t2SBCSri rGPR:$src, imm0_255_not:$imm)>;
1712 def : T2Pat<(adde_live_carry rGPR:$src, t2_so_imm_not:$imm),
1713 (t2SBCSri rGPR:$src, t2_so_imm_not:$imm)>;
1715 // Select Bytes -- for disassembly only
1717 def t2SEL : T2ThreeReg<(outs GPR:$Rd), (ins GPR:$Rn, GPR:$Rm),
1718 NoItinerary, "sel", "\t$Rd, $Rn, $Rm", []>,
1719 Requires<[IsThumb2, HasThumb2DSP]> {
1720 let Inst{31-27} = 0b11111;
1721 let Inst{26-24} = 0b010;
1723 let Inst{22-20} = 0b010;
1724 let Inst{15-12} = 0b1111;
1726 let Inst{6-4} = 0b000;
1729 // A6.3.13, A6.3.14, A6.3.15 Parallel addition and subtraction (signed/unsigned)
1730 // And Miscellaneous operations -- for disassembly only
1731 class T2I_pam<bits<3> op22_20, bits<4> op7_4, string opc,
1732 list<dag> pat = [/* For disassembly only; pattern left blank */],
1733 dag iops = (ins rGPR:$Rn, rGPR:$Rm),
1734 string asm = "\t$Rd, $Rn, $Rm">
1735 : T2I<(outs rGPR:$Rd), iops, NoItinerary, opc, asm, pat>,
1736 Requires<[IsThumb2, HasThumb2DSP]> {
1737 let Inst{31-27} = 0b11111;
1738 let Inst{26-23} = 0b0101;
1739 let Inst{22-20} = op22_20;
1740 let Inst{15-12} = 0b1111;
1741 let Inst{7-4} = op7_4;
1747 let Inst{11-8} = Rd;
1748 let Inst{19-16} = Rn;
1752 // Saturating add/subtract -- for disassembly only
1754 def t2QADD : T2I_pam<0b000, 0b1000, "qadd",
1755 [(set rGPR:$Rd, (int_arm_qadd rGPR:$Rn, rGPR:$Rm))],
1756 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1757 def t2QADD16 : T2I_pam<0b001, 0b0001, "qadd16">;
1758 def t2QADD8 : T2I_pam<0b000, 0b0001, "qadd8">;
1759 def t2QASX : T2I_pam<0b010, 0b0001, "qasx">;
1760 def t2QDADD : T2I_pam<0b000, 0b1001, "qdadd", [],
1761 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1762 def t2QDSUB : T2I_pam<0b000, 0b1011, "qdsub", [],
1763 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1764 def t2QSAX : T2I_pam<0b110, 0b0001, "qsax">;
1765 def t2QSUB : T2I_pam<0b000, 0b1010, "qsub",
1766 [(set rGPR:$Rd, (int_arm_qsub rGPR:$Rn, rGPR:$Rm))],
1767 (ins rGPR:$Rm, rGPR:$Rn), "\t$Rd, $Rm, $Rn">;
1768 def t2QSUB16 : T2I_pam<0b101, 0b0001, "qsub16">;
1769 def t2QSUB8 : T2I_pam<0b100, 0b0001, "qsub8">;
1770 def t2UQADD16 : T2I_pam<0b001, 0b0101, "uqadd16">;
1771 def t2UQADD8 : T2I_pam<0b000, 0b0101, "uqadd8">;
1772 def t2UQASX : T2I_pam<0b010, 0b0101, "uqasx">;
1773 def t2UQSAX : T2I_pam<0b110, 0b0101, "uqsax">;
1774 def t2UQSUB16 : T2I_pam<0b101, 0b0101, "uqsub16">;
1775 def t2UQSUB8 : T2I_pam<0b100, 0b0101, "uqsub8">;
1777 // Signed/Unsigned add/subtract -- for disassembly only
1779 def t2SASX : T2I_pam<0b010, 0b0000, "sasx">;
1780 def t2SADD16 : T2I_pam<0b001, 0b0000, "sadd16">;
1781 def t2SADD8 : T2I_pam<0b000, 0b0000, "sadd8">;
1782 def t2SSAX : T2I_pam<0b110, 0b0000, "ssax">;
1783 def t2SSUB16 : T2I_pam<0b101, 0b0000, "ssub16">;
1784 def t2SSUB8 : T2I_pam<0b100, 0b0000, "ssub8">;
1785 def t2UASX : T2I_pam<0b010, 0b0100, "uasx">;
1786 def t2UADD16 : T2I_pam<0b001, 0b0100, "uadd16">;
1787 def t2UADD8 : T2I_pam<0b000, 0b0100, "uadd8">;
1788 def t2USAX : T2I_pam<0b110, 0b0100, "usax">;
1789 def t2USUB16 : T2I_pam<0b101, 0b0100, "usub16">;
1790 def t2USUB8 : T2I_pam<0b100, 0b0100, "usub8">;
1792 // Signed/Unsigned halving add/subtract -- for disassembly only
1794 def t2SHASX : T2I_pam<0b010, 0b0010, "shasx">;
1795 def t2SHADD16 : T2I_pam<0b001, 0b0010, "shadd16">;
1796 def t2SHADD8 : T2I_pam<0b000, 0b0010, "shadd8">;
1797 def t2SHSAX : T2I_pam<0b110, 0b0010, "shsax">;
1798 def t2SHSUB16 : T2I_pam<0b101, 0b0010, "shsub16">;
1799 def t2SHSUB8 : T2I_pam<0b100, 0b0010, "shsub8">;
1800 def t2UHASX : T2I_pam<0b010, 0b0110, "uhasx">;
1801 def t2UHADD16 : T2I_pam<0b001, 0b0110, "uhadd16">;
1802 def t2UHADD8 : T2I_pam<0b000, 0b0110, "uhadd8">;
1803 def t2UHSAX : T2I_pam<0b110, 0b0110, "uhsax">;
1804 def t2UHSUB16 : T2I_pam<0b101, 0b0110, "uhsub16">;
1805 def t2UHSUB8 : T2I_pam<0b100, 0b0110, "uhsub8">;
1807 // Helper class for disassembly only
1808 // A6.3.16 & A6.3.17
1809 // T2Imac - Thumb2 multiply [accumulate, and absolute difference] instructions.
1810 class T2ThreeReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1811 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1812 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
1813 let Inst{31-27} = 0b11111;
1814 let Inst{26-24} = 0b011;
1815 let Inst{23} = long;
1816 let Inst{22-20} = op22_20;
1817 let Inst{7-4} = op7_4;
1820 class T2FourReg_mac<bit long, bits<3> op22_20, bits<4> op7_4, dag oops,
1821 dag iops, InstrItinClass itin, string opc, string asm, list<dag> pattern>
1822 : T2FourReg<oops, iops, itin, opc, asm, pattern> {
1823 let Inst{31-27} = 0b11111;
1824 let Inst{26-24} = 0b011;
1825 let Inst{23} = long;
1826 let Inst{22-20} = op22_20;
1827 let Inst{7-4} = op7_4;
1830 // Unsigned Sum of Absolute Differences [and Accumulate] -- for disassembly only
1832 def t2USAD8 : T2ThreeReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1833 (ins rGPR:$Rn, rGPR:$Rm),
1834 NoItinerary, "usad8", "\t$Rd, $Rn, $Rm", []>,
1835 Requires<[IsThumb2, HasThumb2DSP]> {
1836 let Inst{15-12} = 0b1111;
1838 def t2USADA8 : T2FourReg_mac<0, 0b111, 0b0000, (outs rGPR:$Rd),
1839 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), NoItinerary,
1840 "usada8", "\t$Rd, $Rn, $Rm, $Ra", []>,
1841 Requires<[IsThumb2, HasThumb2DSP]>;
1843 // Signed/Unsigned saturate -- for disassembly only
1845 class T2SatI<dag oops, dag iops, InstrItinClass itin,
1846 string opc, string asm, list<dag> pattern>
1847 : T2I<oops, iops, itin, opc, asm, pattern> {
1853 let Inst{11-8} = Rd;
1854 let Inst{19-16} = Rn;
1855 let Inst{4-0} = sat_imm;
1856 let Inst{21} = sh{5};
1857 let Inst{14-12} = sh{4-2};
1858 let Inst{7-6} = sh{1-0};
1862 (outs rGPR:$Rd), (ins imm1_32:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1863 NoItinerary, "ssat", "\t$Rd, $sat_imm, $Rn$sh",
1864 [/* For disassembly only; pattern left blank */]> {
1865 let Inst{31-27} = 0b11110;
1866 let Inst{25-22} = 0b1100;
1871 def t2SSAT16: T2SatI<
1872 (outs rGPR:$Rd), (ins imm1_16:$sat_imm, rGPR:$Rn), NoItinerary,
1873 "ssat16", "\t$Rd, $sat_imm, $Rn",
1874 [/* For disassembly only; pattern left blank */]>,
1875 Requires<[IsThumb2, HasThumb2DSP]> {
1876 let Inst{31-27} = 0b11110;
1877 let Inst{25-22} = 0b1100;
1880 let Inst{21} = 1; // sh = '1'
1881 let Inst{14-12} = 0b000; // imm3 = '000'
1882 let Inst{7-6} = 0b00; // imm2 = '00'
1886 (outs rGPR:$Rd), (ins i32imm:$sat_imm, rGPR:$Rn, shift_imm:$sh),
1887 NoItinerary, "usat", "\t$Rd, $sat_imm, $Rn$sh",
1888 [/* For disassembly only; pattern left blank */]> {
1889 let Inst{31-27} = 0b11110;
1890 let Inst{25-22} = 0b1110;
1895 def t2USAT16: T2SatI<(outs rGPR:$dst), (ins i32imm:$sat_imm, rGPR:$Rn),
1897 "usat16", "\t$dst, $sat_imm, $Rn",
1898 [/* For disassembly only; pattern left blank */]>,
1899 Requires<[IsThumb2, HasThumb2DSP]> {
1900 let Inst{31-27} = 0b11110;
1901 let Inst{25-22} = 0b1110;
1904 let Inst{21} = 1; // sh = '1'
1905 let Inst{14-12} = 0b000; // imm3 = '000'
1906 let Inst{7-6} = 0b00; // imm2 = '00'
1909 def : T2Pat<(int_arm_ssat GPR:$a, imm:$pos), (t2SSAT imm:$pos, GPR:$a, 0)>;
1910 def : T2Pat<(int_arm_usat GPR:$a, imm:$pos), (t2USAT imm:$pos, GPR:$a, 0)>;
1912 //===----------------------------------------------------------------------===//
1913 // Shift and rotate Instructions.
1916 defm t2LSL : T2I_sh_ir<0b00, "lsl", BinOpFrag<(shl node:$LHS, node:$RHS)>>;
1917 defm t2LSR : T2I_sh_ir<0b01, "lsr", BinOpFrag<(srl node:$LHS, node:$RHS)>>;
1918 defm t2ASR : T2I_sh_ir<0b10, "asr", BinOpFrag<(sra node:$LHS, node:$RHS)>>;
1919 defm t2ROR : T2I_sh_ir<0b11, "ror", BinOpFrag<(rotr node:$LHS, node:$RHS)>>;
1921 // (rotr x, (and y, 0x...1f)) ==> (ROR x, y)
1922 def : Pat<(rotr rGPR:$lhs, (and rGPR:$rhs, lo5AllOne)),
1923 (t2RORrr rGPR:$lhs, rGPR:$rhs)>;
1925 let Uses = [CPSR] in {
1926 def t2RRX : T2sTwoReg<(outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
1927 "rrx", "\t$Rd, $Rm",
1928 [(set rGPR:$Rd, (ARMrrx rGPR:$Rm))]> {
1929 let Inst{31-27} = 0b11101;
1930 let Inst{26-25} = 0b01;
1931 let Inst{24-21} = 0b0010;
1932 let Inst{19-16} = 0b1111; // Rn
1933 let Inst{14-12} = 0b000;
1934 let Inst{7-4} = 0b0011;
1938 let isCodeGenOnly = 1, Defs = [CPSR] in {
1939 def t2MOVsrl_flag : T2TwoRegShiftImm<
1940 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
1941 "lsrs", ".w\t$Rd, $Rm, #1",
1942 [(set rGPR:$Rd, (ARMsrl_flag rGPR:$Rm))]> {
1943 let Inst{31-27} = 0b11101;
1944 let Inst{26-25} = 0b01;
1945 let Inst{24-21} = 0b0010;
1946 let Inst{20} = 1; // The S bit.
1947 let Inst{19-16} = 0b1111; // Rn
1948 let Inst{5-4} = 0b01; // Shift type.
1949 // Shift amount = Inst{14-12:7-6} = 1.
1950 let Inst{14-12} = 0b000;
1951 let Inst{7-6} = 0b01;
1953 def t2MOVsra_flag : T2TwoRegShiftImm<
1954 (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iMOVsi,
1955 "asrs", ".w\t$Rd, $Rm, #1",
1956 [(set rGPR:$Rd, (ARMsra_flag rGPR:$Rm))]> {
1957 let Inst{31-27} = 0b11101;
1958 let Inst{26-25} = 0b01;
1959 let Inst{24-21} = 0b0010;
1960 let Inst{20} = 1; // The S bit.
1961 let Inst{19-16} = 0b1111; // Rn
1962 let Inst{5-4} = 0b10; // Shift type.
1963 // Shift amount = Inst{14-12:7-6} = 1.
1964 let Inst{14-12} = 0b000;
1965 let Inst{7-6} = 0b01;
1969 //===----------------------------------------------------------------------===//
1970 // Bitwise Instructions.
1973 defm t2AND : T2I_bin_w_irs<0b0000, "and",
1974 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1975 BinOpFrag<(and node:$LHS, node:$RHS)>, "t2AND", 1>;
1976 defm t2ORR : T2I_bin_w_irs<0b0010, "orr",
1977 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1978 BinOpFrag<(or node:$LHS, node:$RHS)>, "t2ORR", 1>;
1979 defm t2EOR : T2I_bin_w_irs<0b0100, "eor",
1980 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1981 BinOpFrag<(xor node:$LHS, node:$RHS)>, "t2EOR", 1>;
1983 defm t2BIC : T2I_bin_w_irs<0b0001, "bic",
1984 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
1985 BinOpFrag<(and node:$LHS, (not node:$RHS))>,
1988 class T2BitFI<dag oops, dag iops, InstrItinClass itin,
1989 string opc, string asm, list<dag> pattern>
1990 : T2I<oops, iops, itin, opc, asm, pattern> {
1995 let Inst{11-8} = Rd;
1996 let Inst{4-0} = msb{4-0};
1997 let Inst{14-12} = lsb{4-2};
1998 let Inst{7-6} = lsb{1-0};
2001 class T2TwoRegBitFI<dag oops, dag iops, InstrItinClass itin,
2002 string opc, string asm, list<dag> pattern>
2003 : T2BitFI<oops, iops, itin, opc, asm, pattern> {
2006 let Inst{19-16} = Rn;
2009 let Constraints = "$src = $Rd" in
2010 def t2BFC : T2BitFI<(outs rGPR:$Rd), (ins rGPR:$src, bf_inv_mask_imm:$imm),
2011 IIC_iUNAsi, "bfc", "\t$Rd, $imm",
2012 [(set rGPR:$Rd, (and rGPR:$src, bf_inv_mask_imm:$imm))]> {
2013 let Inst{31-27} = 0b11110;
2014 let Inst{26} = 0; // should be 0.
2016 let Inst{24-20} = 0b10110;
2017 let Inst{19-16} = 0b1111; // Rn
2019 let Inst{5} = 0; // should be 0.
2022 let msb{4-0} = imm{9-5};
2023 let lsb{4-0} = imm{4-0};
2026 def t2SBFX: T2TwoRegBitFI<
2027 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2028 IIC_iUNAsi, "sbfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2029 let Inst{31-27} = 0b11110;
2031 let Inst{24-20} = 0b10100;
2035 def t2UBFX: T2TwoRegBitFI<
2036 (outs rGPR:$Rd), (ins rGPR:$Rn, imm0_31:$lsb, imm1_32:$msb),
2037 IIC_iUNAsi, "ubfx", "\t$Rd, $Rn, $lsb, $msb", []> {
2038 let Inst{31-27} = 0b11110;
2040 let Inst{24-20} = 0b11100;
2044 // A8.6.18 BFI - Bitfield insert (Encoding T1)
2045 let Constraints = "$src = $Rd" in {
2046 def t2BFI : T2TwoRegBitFI<(outs rGPR:$Rd),
2047 (ins rGPR:$src, rGPR:$Rn, bf_inv_mask_imm:$imm),
2048 IIC_iBITi, "bfi", "\t$Rd, $Rn, $imm",
2049 [(set rGPR:$Rd, (ARMbfi rGPR:$src, rGPR:$Rn,
2050 bf_inv_mask_imm:$imm))]> {
2051 let Inst{31-27} = 0b11110;
2052 let Inst{26} = 0; // should be 0.
2054 let Inst{24-20} = 0b10110;
2056 let Inst{5} = 0; // should be 0.
2059 let msb{4-0} = imm{9-5};
2060 let lsb{4-0} = imm{4-0};
2063 // GNU as only supports this form of bfi (w/ 4 arguments)
2064 let isAsmParserOnly = 1 in
2065 def t2BFI4p : T2TwoRegBitFI<(outs rGPR:$Rd),
2066 (ins rGPR:$src, rGPR:$Rn, lsb_pos_imm:$lsbit,
2068 IIC_iBITi, "bfi", "\t$Rd, $Rn, $lsbit, $width",
2070 let Inst{31-27} = 0b11110;
2071 let Inst{26} = 0; // should be 0.
2073 let Inst{24-20} = 0b10110;
2075 let Inst{5} = 0; // should be 0.
2079 let msb{4-0} = width; // Custom encoder => lsb+width-1
2080 let lsb{4-0} = lsbit;
2084 defm t2ORN : T2I_bin_irs<0b0011, "orn",
2085 IIC_iBITi, IIC_iBITr, IIC_iBITsi,
2086 BinOpFrag<(or node:$LHS, (not node:$RHS))>,
2089 // Prefer over of t2EORri ra, rb, -1 because mvn has 16-bit version
2090 let AddedComplexity = 1 in
2091 defm t2MVN : T2I_un_irs <0b0011, "mvn",
2092 IIC_iMVNi, IIC_iMVNr, IIC_iMVNsi,
2093 UnOpFrag<(not node:$Src)>, 1, 1>;
2096 let AddedComplexity = 1 in
2097 def : T2Pat<(and rGPR:$src, t2_so_imm_not:$imm),
2098 (t2BICri rGPR:$src, t2_so_imm_not:$imm)>;
2100 // FIXME: Disable this pattern on Darwin to workaround an assembler bug.
2101 def : T2Pat<(or rGPR:$src, t2_so_imm_not:$imm),
2102 (t2ORNri rGPR:$src, t2_so_imm_not:$imm)>,
2103 Requires<[IsThumb2]>;
2105 def : T2Pat<(t2_so_imm_not:$src),
2106 (t2MVNi t2_so_imm_not:$src)>;
2108 //===----------------------------------------------------------------------===//
2109 // Multiply Instructions.
2111 let isCommutable = 1 in
2112 def t2MUL: T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2113 "mul", "\t$Rd, $Rn, $Rm",
2114 [(set rGPR:$Rd, (mul rGPR:$Rn, rGPR:$Rm))]> {
2115 let Inst{31-27} = 0b11111;
2116 let Inst{26-23} = 0b0110;
2117 let Inst{22-20} = 0b000;
2118 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2119 let Inst{7-4} = 0b0000; // Multiply
2122 def t2MLA: T2FourReg<
2123 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2124 "mla", "\t$Rd, $Rn, $Rm, $Ra",
2125 [(set rGPR:$Rd, (add (mul rGPR:$Rn, rGPR:$Rm), rGPR:$Ra))]> {
2126 let Inst{31-27} = 0b11111;
2127 let Inst{26-23} = 0b0110;
2128 let Inst{22-20} = 0b000;
2129 let Inst{7-4} = 0b0000; // Multiply
2132 def t2MLS: T2FourReg<
2133 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2134 "mls", "\t$Rd, $Rn, $Rm, $Ra",
2135 [(set rGPR:$Rd, (sub rGPR:$Ra, (mul rGPR:$Rn, rGPR:$Rm)))]> {
2136 let Inst{31-27} = 0b11111;
2137 let Inst{26-23} = 0b0110;
2138 let Inst{22-20} = 0b000;
2139 let Inst{7-4} = 0b0001; // Multiply and Subtract
2142 // Extra precision multiplies with low / high results
2143 let neverHasSideEffects = 1 in {
2144 let isCommutable = 1 in {
2145 def t2SMULL : T2MulLong<0b000, 0b0000,
2146 (outs rGPR:$Rd, rGPR:$Ra),
2147 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2148 "smull", "\t$Rd, $Ra, $Rn, $Rm", []>;
2150 def t2UMULL : T2MulLong<0b010, 0b0000,
2151 (outs rGPR:$RdLo, rGPR:$RdHi),
2152 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL64,
2153 "umull", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2156 // Multiply + accumulate
2157 def t2SMLAL : T2MulLong<0b100, 0b0000,
2158 (outs rGPR:$RdLo, rGPR:$RdHi),
2159 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2160 "smlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2162 def t2UMLAL : T2MulLong<0b110, 0b0000,
2163 (outs rGPR:$RdLo, rGPR:$RdHi),
2164 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2165 "umlal", "\t$RdLo, $RdHi, $Rn, $Rm", []>;
2167 def t2UMAAL : T2MulLong<0b110, 0b0110,
2168 (outs rGPR:$RdLo, rGPR:$RdHi),
2169 (ins rGPR:$Rn, rGPR:$Rm), IIC_iMAC64,
2170 "umaal", "\t$RdLo, $RdHi, $Rn, $Rm", []>,
2171 Requires<[IsThumb2, HasThumb2DSP]>;
2172 } // neverHasSideEffects
2174 // Rounding variants of the below included for disassembly only
2176 // Most significant word multiply
2177 def t2SMMUL : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2178 "smmul", "\t$Rd, $Rn, $Rm",
2179 [(set rGPR:$Rd, (mulhs rGPR:$Rn, rGPR:$Rm))]>,
2180 Requires<[IsThumb2, HasThumb2DSP]> {
2181 let Inst{31-27} = 0b11111;
2182 let Inst{26-23} = 0b0110;
2183 let Inst{22-20} = 0b101;
2184 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2185 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2188 def t2SMMULR : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL32,
2189 "smmulr", "\t$Rd, $Rn, $Rm", []>,
2190 Requires<[IsThumb2, HasThumb2DSP]> {
2191 let Inst{31-27} = 0b11111;
2192 let Inst{26-23} = 0b0110;
2193 let Inst{22-20} = 0b101;
2194 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2195 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2198 def t2SMMLA : T2FourReg<
2199 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2200 "smmla", "\t$Rd, $Rn, $Rm, $Ra",
2201 [(set rGPR:$Rd, (add (mulhs rGPR:$Rm, rGPR:$Rn), rGPR:$Ra))]>,
2202 Requires<[IsThumb2, HasThumb2DSP]> {
2203 let Inst{31-27} = 0b11111;
2204 let Inst{26-23} = 0b0110;
2205 let Inst{22-20} = 0b101;
2206 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2209 def t2SMMLAR: T2FourReg<
2210 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2211 "smmlar", "\t$Rd, $Rn, $Rm, $Ra", []>,
2212 Requires<[IsThumb2, HasThumb2DSP]> {
2213 let Inst{31-27} = 0b11111;
2214 let Inst{26-23} = 0b0110;
2215 let Inst{22-20} = 0b101;
2216 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2219 def t2SMMLS: T2FourReg<
2220 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2221 "smmls", "\t$Rd, $Rn, $Rm, $Ra",
2222 [(set rGPR:$Rd, (sub rGPR:$Ra, (mulhs rGPR:$Rn, rGPR:$Rm)))]>,
2223 Requires<[IsThumb2, HasThumb2DSP]> {
2224 let Inst{31-27} = 0b11111;
2225 let Inst{26-23} = 0b0110;
2226 let Inst{22-20} = 0b110;
2227 let Inst{7-4} = 0b0000; // No Rounding (Inst{4} = 0)
2230 def t2SMMLSR:T2FourReg<
2231 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32,
2232 "smmlsr", "\t$Rd, $Rn, $Rm, $Ra", []>,
2233 Requires<[IsThumb2, HasThumb2DSP]> {
2234 let Inst{31-27} = 0b11111;
2235 let Inst{26-23} = 0b0110;
2236 let Inst{22-20} = 0b110;
2237 let Inst{7-4} = 0b0001; // Rounding (Inst{4} = 1)
2240 multiclass T2I_smul<string opc, PatFrag opnode> {
2241 def BB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2242 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm",
2243 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2244 (sext_inreg rGPR:$Rm, i16)))]>,
2245 Requires<[IsThumb2, HasThumb2DSP]> {
2246 let Inst{31-27} = 0b11111;
2247 let Inst{26-23} = 0b0110;
2248 let Inst{22-20} = 0b001;
2249 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2250 let Inst{7-6} = 0b00;
2251 let Inst{5-4} = 0b00;
2254 def BT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2255 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm",
2256 [(set rGPR:$Rd, (opnode (sext_inreg rGPR:$Rn, i16),
2257 (sra rGPR:$Rm, (i32 16))))]>,
2258 Requires<[IsThumb2, HasThumb2DSP]> {
2259 let Inst{31-27} = 0b11111;
2260 let Inst{26-23} = 0b0110;
2261 let Inst{22-20} = 0b001;
2262 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2263 let Inst{7-6} = 0b00;
2264 let Inst{5-4} = 0b01;
2267 def TB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2268 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm",
2269 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2270 (sext_inreg rGPR:$Rm, i16)))]>,
2271 Requires<[IsThumb2, HasThumb2DSP]> {
2272 let Inst{31-27} = 0b11111;
2273 let Inst{26-23} = 0b0110;
2274 let Inst{22-20} = 0b001;
2275 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2276 let Inst{7-6} = 0b00;
2277 let Inst{5-4} = 0b10;
2280 def TT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2281 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm",
2282 [(set rGPR:$Rd, (opnode (sra rGPR:$Rn, (i32 16)),
2283 (sra rGPR:$Rm, (i32 16))))]>,
2284 Requires<[IsThumb2, HasThumb2DSP]> {
2285 let Inst{31-27} = 0b11111;
2286 let Inst{26-23} = 0b0110;
2287 let Inst{22-20} = 0b001;
2288 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2289 let Inst{7-6} = 0b00;
2290 let Inst{5-4} = 0b11;
2293 def WB : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2294 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm",
2295 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2296 (sext_inreg rGPR:$Rm, i16)), (i32 16)))]>,
2297 Requires<[IsThumb2, HasThumb2DSP]> {
2298 let Inst{31-27} = 0b11111;
2299 let Inst{26-23} = 0b0110;
2300 let Inst{22-20} = 0b011;
2301 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2302 let Inst{7-6} = 0b00;
2303 let Inst{5-4} = 0b00;
2306 def WT : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iMUL16,
2307 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm",
2308 [(set rGPR:$Rd, (sra (opnode rGPR:$Rn,
2309 (sra rGPR:$Rm, (i32 16))), (i32 16)))]>,
2310 Requires<[IsThumb2, HasThumb2DSP]> {
2311 let Inst{31-27} = 0b11111;
2312 let Inst{26-23} = 0b0110;
2313 let Inst{22-20} = 0b011;
2314 let Inst{15-12} = 0b1111; // Ra = 0b1111 (no accumulate)
2315 let Inst{7-6} = 0b00;
2316 let Inst{5-4} = 0b01;
2321 multiclass T2I_smla<string opc, PatFrag opnode> {
2323 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2324 !strconcat(opc, "bb"), "\t$Rd, $Rn, $Rm, $Ra",
2325 [(set rGPR:$Rd, (add rGPR:$Ra,
2326 (opnode (sext_inreg rGPR:$Rn, i16),
2327 (sext_inreg rGPR:$Rm, i16))))]>,
2328 Requires<[IsThumb2, HasThumb2DSP]> {
2329 let Inst{31-27} = 0b11111;
2330 let Inst{26-23} = 0b0110;
2331 let Inst{22-20} = 0b001;
2332 let Inst{7-6} = 0b00;
2333 let Inst{5-4} = 0b00;
2337 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2338 !strconcat(opc, "bt"), "\t$Rd, $Rn, $Rm, $Ra",
2339 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sext_inreg rGPR:$Rn, i16),
2340 (sra rGPR:$Rm, (i32 16)))))]>,
2341 Requires<[IsThumb2, HasThumb2DSP]> {
2342 let Inst{31-27} = 0b11111;
2343 let Inst{26-23} = 0b0110;
2344 let Inst{22-20} = 0b001;
2345 let Inst{7-6} = 0b00;
2346 let Inst{5-4} = 0b01;
2350 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2351 !strconcat(opc, "tb"), "\t$Rd, $Rn, $Rm, $Ra",
2352 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2353 (sext_inreg rGPR:$Rm, i16))))]>,
2354 Requires<[IsThumb2, HasThumb2DSP]> {
2355 let Inst{31-27} = 0b11111;
2356 let Inst{26-23} = 0b0110;
2357 let Inst{22-20} = 0b001;
2358 let Inst{7-6} = 0b00;
2359 let Inst{5-4} = 0b10;
2363 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2364 !strconcat(opc, "tt"), "\t$Rd, $Rn, $Rm, $Ra",
2365 [(set rGPR:$Rd, (add rGPR:$Ra, (opnode (sra rGPR:$Rn, (i32 16)),
2366 (sra rGPR:$Rm, (i32 16)))))]>,
2367 Requires<[IsThumb2, HasThumb2DSP]> {
2368 let Inst{31-27} = 0b11111;
2369 let Inst{26-23} = 0b0110;
2370 let Inst{22-20} = 0b001;
2371 let Inst{7-6} = 0b00;
2372 let Inst{5-4} = 0b11;
2376 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2377 !strconcat(opc, "wb"), "\t$Rd, $Rn, $Rm, $Ra",
2378 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2379 (sext_inreg rGPR:$Rm, i16)), (i32 16))))]>,
2380 Requires<[IsThumb2, HasThumb2DSP]> {
2381 let Inst{31-27} = 0b11111;
2382 let Inst{26-23} = 0b0110;
2383 let Inst{22-20} = 0b011;
2384 let Inst{7-6} = 0b00;
2385 let Inst{5-4} = 0b00;
2389 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC16,
2390 !strconcat(opc, "wt"), "\t$Rd, $Rn, $Rm, $Ra",
2391 [(set rGPR:$Rd, (add rGPR:$Ra, (sra (opnode rGPR:$Rn,
2392 (sra rGPR:$Rm, (i32 16))), (i32 16))))]>,
2393 Requires<[IsThumb2, HasThumb2DSP]> {
2394 let Inst{31-27} = 0b11111;
2395 let Inst{26-23} = 0b0110;
2396 let Inst{22-20} = 0b011;
2397 let Inst{7-6} = 0b00;
2398 let Inst{5-4} = 0b01;
2402 defm t2SMUL : T2I_smul<"smul", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2403 defm t2SMLA : T2I_smla<"smla", BinOpFrag<(mul node:$LHS, node:$RHS)>>;
2405 // Halfword multiple accumulate long: SMLAL<x><y> -- for disassembly only
2406 def t2SMLALBB : T2FourReg_mac<1, 0b100, 0b1000, (outs rGPR:$Ra,rGPR:$Rd),
2407 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbb", "\t$Ra, $Rd, $Rn, $Rm",
2408 [/* For disassembly only; pattern left blank */]>,
2409 Requires<[IsThumb2, HasThumb2DSP]>;
2410 def t2SMLALBT : T2FourReg_mac<1, 0b100, 0b1001, (outs rGPR:$Ra,rGPR:$Rd),
2411 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlalbt", "\t$Ra, $Rd, $Rn, $Rm",
2412 [/* For disassembly only; pattern left blank */]>,
2413 Requires<[IsThumb2, HasThumb2DSP]>;
2414 def t2SMLALTB : T2FourReg_mac<1, 0b100, 0b1010, (outs rGPR:$Ra,rGPR:$Rd),
2415 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltb", "\t$Ra, $Rd, $Rn, $Rm",
2416 [/* For disassembly only; pattern left blank */]>,
2417 Requires<[IsThumb2, HasThumb2DSP]>;
2418 def t2SMLALTT : T2FourReg_mac<1, 0b100, 0b1011, (outs rGPR:$Ra,rGPR:$Rd),
2419 (ins rGPR:$Rn,rGPR:$Rm), IIC_iMAC64, "smlaltt", "\t$Ra, $Rd, $Rn, $Rm",
2420 [/* For disassembly only; pattern left blank */]>,
2421 Requires<[IsThumb2, HasThumb2DSP]>;
2423 // Dual halfword multiple: SMUAD, SMUSD, SMLAD, SMLSD, SMLALD, SMLSLD
2424 // These are for disassembly only.
2426 def t2SMUAD: T2ThreeReg_mac<
2427 0, 0b010, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2428 IIC_iMAC32, "smuad", "\t$Rd, $Rn, $Rm", []>,
2429 Requires<[IsThumb2, HasThumb2DSP]> {
2430 let Inst{15-12} = 0b1111;
2432 def t2SMUADX:T2ThreeReg_mac<
2433 0, 0b010, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2434 IIC_iMAC32, "smuadx", "\t$Rd, $Rn, $Rm", []>,
2435 Requires<[IsThumb2, HasThumb2DSP]> {
2436 let Inst{15-12} = 0b1111;
2438 def t2SMUSD: T2ThreeReg_mac<
2439 0, 0b100, 0b0000, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2440 IIC_iMAC32, "smusd", "\t$Rd, $Rn, $Rm", []>,
2441 Requires<[IsThumb2, HasThumb2DSP]> {
2442 let Inst{15-12} = 0b1111;
2444 def t2SMUSDX:T2ThreeReg_mac<
2445 0, 0b100, 0b0001, (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm),
2446 IIC_iMAC32, "smusdx", "\t$Rd, $Rn, $Rm", []>,
2447 Requires<[IsThumb2, HasThumb2DSP]> {
2448 let Inst{15-12} = 0b1111;
2450 def t2SMLAD : T2ThreeReg_mac<
2451 0, 0b010, 0b0000, (outs rGPR:$Rd),
2452 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlad",
2453 "\t$Rd, $Rn, $Rm, $Ra", []>,
2454 Requires<[IsThumb2, HasThumb2DSP]>;
2455 def t2SMLADX : T2FourReg_mac<
2456 0, 0b010, 0b0001, (outs rGPR:$Rd),
2457 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smladx",
2458 "\t$Rd, $Rn, $Rm, $Ra", []>,
2459 Requires<[IsThumb2, HasThumb2DSP]>;
2460 def t2SMLSD : T2FourReg_mac<0, 0b100, 0b0000, (outs rGPR:$Rd),
2461 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsd",
2462 "\t$Rd, $Rn, $Rm, $Ra", []>,
2463 Requires<[IsThumb2, HasThumb2DSP]>;
2464 def t2SMLSDX : T2FourReg_mac<0, 0b100, 0b0001, (outs rGPR:$Rd),
2465 (ins rGPR:$Rn, rGPR:$Rm, rGPR:$Ra), IIC_iMAC32, "smlsdx",
2466 "\t$Rd, $Rn, $Rm, $Ra", []>,
2467 Requires<[IsThumb2, HasThumb2DSP]>;
2468 def t2SMLALD : T2FourReg_mac<1, 0b100, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2469 (ins rGPR:$Rm, rGPR:$Rn), IIC_iMAC64, "smlald",
2470 "\t$Ra, $Rd, $Rm, $Rn", []>,
2471 Requires<[IsThumb2, HasThumb2DSP]>;
2472 def t2SMLALDX : T2FourReg_mac<1, 0b100, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2473 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlaldx",
2474 "\t$Ra, $Rd, $Rm, $Rn", []>,
2475 Requires<[IsThumb2, HasThumb2DSP]>;
2476 def t2SMLSLD : T2FourReg_mac<1, 0b101, 0b1100, (outs rGPR:$Ra,rGPR:$Rd),
2477 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsld",
2478 "\t$Ra, $Rd, $Rm, $Rn", []>,
2479 Requires<[IsThumb2, HasThumb2DSP]>;
2480 def t2SMLSLDX : T2FourReg_mac<1, 0b101, 0b1101, (outs rGPR:$Ra,rGPR:$Rd),
2481 (ins rGPR:$Rm,rGPR:$Rn), IIC_iMAC64, "smlsldx",
2482 "\t$Ra, $Rd, $Rm, $Rn", []>,
2483 Requires<[IsThumb2, HasThumb2DSP]>;
2485 //===----------------------------------------------------------------------===//
2486 // Division Instructions.
2487 // Signed and unsigned division on v7-M
2489 def t2SDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2490 "sdiv", "\t$Rd, $Rn, $Rm",
2491 [(set rGPR:$Rd, (sdiv rGPR:$Rn, rGPR:$Rm))]>,
2492 Requires<[HasDivide, IsThumb2]> {
2493 let Inst{31-27} = 0b11111;
2494 let Inst{26-21} = 0b011100;
2496 let Inst{15-12} = 0b1111;
2497 let Inst{7-4} = 0b1111;
2500 def t2UDIV : T2ThreeReg<(outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm), IIC_iALUi,
2501 "udiv", "\t$Rd, $Rn, $Rm",
2502 [(set rGPR:$Rd, (udiv rGPR:$Rn, rGPR:$Rm))]>,
2503 Requires<[HasDivide, IsThumb2]> {
2504 let Inst{31-27} = 0b11111;
2505 let Inst{26-21} = 0b011101;
2507 let Inst{15-12} = 0b1111;
2508 let Inst{7-4} = 0b1111;
2511 //===----------------------------------------------------------------------===//
2512 // Misc. Arithmetic Instructions.
2515 class T2I_misc<bits<2> op1, bits<2> op2, dag oops, dag iops,
2516 InstrItinClass itin, string opc, string asm, list<dag> pattern>
2517 : T2ThreeReg<oops, iops, itin, opc, asm, pattern> {
2518 let Inst{31-27} = 0b11111;
2519 let Inst{26-22} = 0b01010;
2520 let Inst{21-20} = op1;
2521 let Inst{15-12} = 0b1111;
2522 let Inst{7-6} = 0b10;
2523 let Inst{5-4} = op2;
2527 def t2CLZ : T2I_misc<0b11, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2528 "clz", "\t$Rd, $Rm", [(set rGPR:$Rd, (ctlz rGPR:$Rm))]>;
2530 def t2RBIT : T2I_misc<0b01, 0b10, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2531 "rbit", "\t$Rd, $Rm",
2532 [(set rGPR:$Rd, (ARMrbit rGPR:$Rm))]>;
2534 def t2REV : T2I_misc<0b01, 0b00, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2535 "rev", ".w\t$Rd, $Rm", [(set rGPR:$Rd, (bswap rGPR:$Rm))]>;
2537 def t2REV16 : T2I_misc<0b01, 0b01, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2538 "rev16", ".w\t$Rd, $Rm",
2539 [(set rGPR:$Rd, (rotr (bswap rGPR:$Rm), (i32 16)))]>;
2541 def t2REVSH : T2I_misc<0b01, 0b11, (outs rGPR:$Rd), (ins rGPR:$Rm), IIC_iUNAr,
2542 "revsh", ".w\t$Rd, $Rm",
2543 [(set rGPR:$Rd, (sra (bswap rGPR:$Rm), (i32 16)))]>;
2545 def : T2Pat<(or (sra (shl rGPR:$Rm, (i32 24)), (i32 16)),
2546 (and (srl rGPR:$Rm, (i32 8)), 0xFF)),
2547 (t2REVSH rGPR:$Rm)>;
2549 def t2PKHBT : T2ThreeReg<
2550 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2551 IIC_iBITsi, "pkhbt", "\t$Rd, $Rn, $Rm, lsl $sh",
2552 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF),
2553 (and (shl rGPR:$Rm, pkh_lsl_amt:$sh),
2555 Requires<[HasT2ExtractPack, IsThumb2]> {
2556 let Inst{31-27} = 0b11101;
2557 let Inst{26-25} = 0b01;
2558 let Inst{24-20} = 0b01100;
2559 let Inst{5} = 0; // BT form
2563 let Inst{14-12} = sh{4-2};
2564 let Inst{7-6} = sh{1-0};
2567 // Alternate cases for PKHBT where identities eliminate some nodes.
2568 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (and rGPR:$src2, 0xFFFF0000)),
2569 (t2PKHBT rGPR:$src1, rGPR:$src2, 0)>,
2570 Requires<[HasT2ExtractPack, IsThumb2]>;
2571 def : T2Pat<(or (and rGPR:$src1, 0xFFFF), (shl rGPR:$src2, imm16_31:$sh)),
2572 (t2PKHBT rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2573 Requires<[HasT2ExtractPack, IsThumb2]>;
2575 // Note: Shifts of 1-15 bits will be transformed to srl instead of sra and
2576 // will match the pattern below.
2577 def t2PKHTB : T2ThreeReg<
2578 (outs rGPR:$Rd), (ins rGPR:$Rn, rGPR:$Rm, i32imm:$sh),
2579 IIC_iBITsi, "pkhtb", "\t$Rd, $Rn, $Rm, asr $sh",
2580 [(set rGPR:$Rd, (or (and rGPR:$Rn, 0xFFFF0000),
2581 (and (sra rGPR:$Rm, pkh_asr_amt:$sh),
2583 Requires<[HasT2ExtractPack, IsThumb2]> {
2584 let Inst{31-27} = 0b11101;
2585 let Inst{26-25} = 0b01;
2586 let Inst{24-20} = 0b01100;
2587 let Inst{5} = 1; // TB form
2591 let Inst{14-12} = sh{4-2};
2592 let Inst{7-6} = sh{1-0};
2595 // Alternate cases for PKHTB where identities eliminate some nodes. Note that
2596 // a shift amount of 0 is *not legal* here, it is PKHBT instead.
2597 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000), (srl rGPR:$src2, imm16_31:$sh)),
2598 (t2PKHTB rGPR:$src1, rGPR:$src2, imm16_31:$sh)>,
2599 Requires<[HasT2ExtractPack, IsThumb2]>;
2600 def : T2Pat<(or (and rGPR:$src1, 0xFFFF0000),
2601 (and (srl rGPR:$src2, imm1_15:$sh), 0xFFFF)),
2602 (t2PKHTB rGPR:$src1, rGPR:$src2, imm1_15:$sh)>,
2603 Requires<[HasT2ExtractPack, IsThumb2]>;
2605 //===----------------------------------------------------------------------===//
2606 // Comparison Instructions...
2608 defm t2CMP : T2I_cmp_irs<0b1101, "cmp",
2609 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2610 BinOpFrag<(ARMcmp node:$LHS, node:$RHS)>>;
2612 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_imm:$imm),
2613 (t2CMPri GPR:$lhs, t2_so_imm:$imm)>;
2614 def : T2Pat<(ARMcmpZ GPR:$lhs, rGPR:$rhs),
2615 (t2CMPrr GPR:$lhs, rGPR:$rhs)>;
2616 def : T2Pat<(ARMcmpZ GPR:$lhs, t2_so_reg:$rhs),
2617 (t2CMPrs GPR:$lhs, t2_so_reg:$rhs)>;
2619 //FIXME: Disable CMN, as CCodes are backwards from compare expectations
2620 // Compare-to-zero still works out, just not the relationals
2621 //defm t2CMN : T2I_cmp_irs<0b1000, "cmn",
2622 // BinOpFrag<(ARMcmp node:$LHS,(ineg node:$RHS))>>;
2623 defm t2CMNz : T2I_cmp_irs<0b1000, "cmn",
2624 IIC_iCMPi, IIC_iCMPr, IIC_iCMPsi,
2625 BinOpFrag<(ARMcmpZ node:$LHS,(ineg node:$RHS))>>;
2627 //def : T2Pat<(ARMcmp GPR:$src, t2_so_imm_neg:$imm),
2628 // (t2CMNri GPR:$src, t2_so_imm_neg:$imm)>;
2630 def : T2Pat<(ARMcmpZ GPR:$src, t2_so_imm_neg:$imm),
2631 (t2CMNzri GPR:$src, t2_so_imm_neg:$imm)>;
2633 defm t2TST : T2I_cmp_irs<0b0000, "tst",
2634 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2635 BinOpFrag<(ARMcmpZ (and_su node:$LHS, node:$RHS), 0)>>;
2636 defm t2TEQ : T2I_cmp_irs<0b0100, "teq",
2637 IIC_iTSTi, IIC_iTSTr, IIC_iTSTsi,
2638 BinOpFrag<(ARMcmpZ (xor_su node:$LHS, node:$RHS), 0)>>;
2640 // Conditional moves
2641 // FIXME: should be able to write a pattern for ARMcmov, but can't use
2642 // a two-value operand where a dag node expects two operands. :(
2643 let neverHasSideEffects = 1 in {
2644 def t2MOVCCr : t2PseudoInst<(outs rGPR:$Rd),
2645 (ins rGPR:$false, rGPR:$Rm, pred:$p),
2647 [/*(set rGPR:$Rd, (ARMcmov rGPR:$false, rGPR:$Rm, imm:$cc, CCR:$ccr))*/]>,
2648 RegConstraint<"$false = $Rd">;
2650 let isMoveImm = 1 in
2651 def t2MOVCCi : t2PseudoInst<(outs rGPR:$Rd),
2652 (ins rGPR:$false, t2_so_imm:$imm, pred:$p),
2654 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm:$imm, imm:$cc, CCR:$ccr))*/]>,
2655 RegConstraint<"$false = $Rd">;
2657 // FIXME: Pseudo-ize these. For now, just mark codegen only.
2658 let isCodeGenOnly = 1 in {
2659 let isMoveImm = 1 in
2660 def t2MOVCCi16 : T2I<(outs rGPR:$Rd), (ins rGPR:$false, imm0_65535_expr:$imm),
2662 "movw", "\t$Rd, $imm", []>,
2663 RegConstraint<"$false = $Rd"> {
2664 let Inst{31-27} = 0b11110;
2666 let Inst{24-21} = 0b0010;
2667 let Inst{20} = 0; // The S bit.
2673 let Inst{11-8} = Rd;
2674 let Inst{19-16} = imm{15-12};
2675 let Inst{26} = imm{11};
2676 let Inst{14-12} = imm{10-8};
2677 let Inst{7-0} = imm{7-0};
2680 let isMoveImm = 1 in
2681 def t2MOVCCi32imm : PseudoInst<(outs rGPR:$dst),
2682 (ins rGPR:$false, i32imm:$src, pred:$p),
2683 IIC_iCMOVix2, []>, RegConstraint<"$false = $dst">;
2685 let isMoveImm = 1 in
2686 def t2MVNCCi : T2OneRegImm<(outs rGPR:$Rd), (ins rGPR:$false, t2_so_imm:$imm),
2687 IIC_iCMOVi, "mvn", ".w\t$Rd, $imm",
2688 [/*(set rGPR:$Rd,(ARMcmov rGPR:$false,t2_so_imm_not:$imm,
2689 imm:$cc, CCR:$ccr))*/]>,
2690 RegConstraint<"$false = $Rd"> {
2691 let Inst{31-27} = 0b11110;
2693 let Inst{24-21} = 0b0011;
2694 let Inst{20} = 0; // The S bit.
2695 let Inst{19-16} = 0b1111; // Rn
2699 class T2I_movcc_sh<bits<2> opcod, dag oops, dag iops, InstrItinClass itin,
2700 string opc, string asm, list<dag> pattern>
2701 : T2TwoRegShiftImm<oops, iops, itin, opc, asm, pattern> {
2702 let Inst{31-27} = 0b11101;
2703 let Inst{26-25} = 0b01;
2704 let Inst{24-21} = 0b0010;
2705 let Inst{20} = 0; // The S bit.
2706 let Inst{19-16} = 0b1111; // Rn
2707 let Inst{5-4} = opcod; // Shift type.
2709 def t2MOVCClsl : T2I_movcc_sh<0b00, (outs rGPR:$Rd),
2710 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2711 IIC_iCMOVsi, "lsl", ".w\t$Rd, $Rm, $imm", []>,
2712 RegConstraint<"$false = $Rd">;
2713 def t2MOVCClsr : T2I_movcc_sh<0b01, (outs rGPR:$Rd),
2714 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2715 IIC_iCMOVsi, "lsr", ".w\t$Rd, $Rm, $imm", []>,
2716 RegConstraint<"$false = $Rd">;
2717 def t2MOVCCasr : T2I_movcc_sh<0b10, (outs rGPR:$Rd),
2718 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2719 IIC_iCMOVsi, "asr", ".w\t$Rd, $Rm, $imm", []>,
2720 RegConstraint<"$false = $Rd">;
2721 def t2MOVCCror : T2I_movcc_sh<0b11, (outs rGPR:$Rd),
2722 (ins rGPR:$false, rGPR:$Rm, i32imm:$imm),
2723 IIC_iCMOVsi, "ror", ".w\t$Rd, $Rm, $imm", []>,
2724 RegConstraint<"$false = $Rd">;
2725 } // isCodeGenOnly = 1
2726 } // neverHasSideEffects
2728 //===----------------------------------------------------------------------===//
2729 // Atomic operations intrinsics
2732 // memory barriers protect the atomic sequences
2733 let hasSideEffects = 1 in {
2734 def t2DMB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2735 "dmb", "\t$opt", [(ARMMemBarrier (i32 imm:$opt))]>,
2736 Requires<[IsThumb, HasDB]> {
2738 let Inst{31-4} = 0xf3bf8f5;
2739 let Inst{3-0} = opt;
2743 def t2DSB : AInoP<(outs), (ins memb_opt:$opt), ThumbFrm, NoItinerary,
2745 [/* For disassembly only; pattern left blank */]>,
2746 Requires<[IsThumb, HasDB]> {
2748 let Inst{31-4} = 0xf3bf8f4;
2749 let Inst{3-0} = opt;
2752 // ISB has only full system option -- for disassembly only
2753 def t2ISB : AInoP<(outs), (ins), ThumbFrm, NoItinerary, "isb", "",
2754 [/* For disassembly only; pattern left blank */]>,
2755 Requires<[IsThumb2, HasV7]> {
2756 let Inst{31-4} = 0xf3bf8f6;
2757 let Inst{3-0} = 0b1111;
2760 class T2I_ldrex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2761 InstrItinClass itin, string opc, string asm, string cstr,
2762 list<dag> pattern, bits<4> rt2 = 0b1111>
2763 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2764 let Inst{31-27} = 0b11101;
2765 let Inst{26-20} = 0b0001101;
2766 let Inst{11-8} = rt2;
2767 let Inst{7-6} = 0b01;
2768 let Inst{5-4} = opcod;
2769 let Inst{3-0} = 0b1111;
2773 let Inst{19-16} = addr;
2774 let Inst{15-12} = Rt;
2776 class T2I_strex<bits<2> opcod, dag oops, dag iops, AddrMode am, int sz,
2777 InstrItinClass itin, string opc, string asm, string cstr,
2778 list<dag> pattern, bits<4> rt2 = 0b1111>
2779 : Thumb2I<oops, iops, am, sz, itin, opc, asm, cstr, pattern> {
2780 let Inst{31-27} = 0b11101;
2781 let Inst{26-20} = 0b0001100;
2782 let Inst{11-8} = rt2;
2783 let Inst{7-6} = 0b01;
2784 let Inst{5-4} = opcod;
2790 let Inst{19-16} = addr;
2791 let Inst{15-12} = Rt;
2794 let mayLoad = 1 in {
2795 def t2LDREXB : T2I_ldrex<0b00, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2796 AddrModeNone, 4, NoItinerary,
2797 "ldrexb", "\t$Rt, $addr", "", []>;
2798 def t2LDREXH : T2I_ldrex<0b01, (outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2799 AddrModeNone, 4, NoItinerary,
2800 "ldrexh", "\t$Rt, $addr", "", []>;
2801 def t2LDREX : Thumb2I<(outs rGPR:$Rt), (ins t2addrmode_reg:$addr),
2802 AddrModeNone, 4, NoItinerary,
2803 "ldrex", "\t$Rt, $addr", "", []> {
2804 let Inst{31-27} = 0b11101;
2805 let Inst{26-20} = 0b0000101;
2806 let Inst{11-8} = 0b1111;
2807 let Inst{7-0} = 0b00000000; // imm8 = 0
2811 let Inst{19-16} = addr;
2812 let Inst{15-12} = Rt;
2814 let hasExtraDefRegAllocReq = 1 in
2815 def t2LDREXD : T2I_ldrex<0b11, (outs rGPR:$Rt, rGPR:$Rt2),
2816 (ins t2addrmode_reg:$addr),
2817 AddrModeNone, 4, NoItinerary,
2818 "ldrexd", "\t$Rt, $Rt2, $addr", "",
2821 let Inst{11-8} = Rt2;
2825 let mayStore = 1, Constraints = "@earlyclobber $Rd" in {
2826 def t2STREXB : T2I_strex<0b00, (outs rGPR:$Rd),
2827 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2828 AddrModeNone, 4, NoItinerary,
2829 "strexb", "\t$Rd, $Rt, $addr", "", []>;
2830 def t2STREXH : T2I_strex<0b01, (outs rGPR:$Rd),
2831 (ins rGPR:$Rt, t2addrmode_reg:$addr),
2832 AddrModeNone, 4, NoItinerary,
2833 "strexh", "\t$Rd, $Rt, $addr", "", []>;
2834 def t2STREX : Thumb2I<(outs rGPR:$Rd), (ins rGPR:$Rt, t2addrmode_reg:$addr),
2835 AddrModeNone, 4, NoItinerary,
2836 "strex", "\t$Rd, $Rt, $addr", "",
2838 let Inst{31-27} = 0b11101;
2839 let Inst{26-20} = 0b0000100;
2840 let Inst{7-0} = 0b00000000; // imm8 = 0
2845 let Inst{11-8} = Rd;
2846 let Inst{19-16} = addr;
2847 let Inst{15-12} = Rt;
2851 let hasExtraSrcRegAllocReq = 1, Constraints = "@earlyclobber $Rd" in
2852 def t2STREXD : T2I_strex<0b11, (outs rGPR:$Rd),
2853 (ins rGPR:$Rt, rGPR:$Rt2, t2addrmode_reg:$addr),
2854 AddrModeNone, 4, NoItinerary,
2855 "strexd", "\t$Rd, $Rt, $Rt2, $addr", "", [],
2858 let Inst{11-8} = Rt2;
2861 // Clear-Exclusive is for disassembly only.
2862 def t2CLREX : T2XI<(outs), (ins), NoItinerary, "clrex",
2863 [/* For disassembly only; pattern left blank */]>,
2864 Requires<[IsThumb2, HasV7]> {
2865 let Inst{31-16} = 0xf3bf;
2866 let Inst{15-14} = 0b10;
2869 let Inst{11-8} = 0b1111;
2870 let Inst{7-4} = 0b0010;
2871 let Inst{3-0} = 0b1111;
2874 //===----------------------------------------------------------------------===//
2875 // SJLJ Exception handling intrinsics
2876 // eh_sjlj_setjmp() is an instruction sequence to store the return
2877 // address and save #0 in R0 for the non-longjmp case.
2878 // Since by its nature we may be coming from some other function to get
2879 // here, and we're using the stack frame for the containing function to
2880 // save/restore registers, we can't keep anything live in regs across
2881 // the eh_sjlj_setjmp(), else it will almost certainly have been tromped upon
2882 // when we get here from a longjmp(). We force everything out of registers
2883 // except for our own input by listing the relevant registers in Defs. By
2884 // doing so, we also cause the prologue/epilogue code to actively preserve
2885 // all of the callee-saved resgisters, which is exactly what we want.
2886 // $val is a scratch register for our use.
2888 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR,
2889 QQQQ0, QQQQ1, QQQQ2, QQQQ3 ],
2890 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2891 def t2Int_eh_sjlj_setjmp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2892 AddrModeNone, 0, NoItinerary, "", "",
2893 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2894 Requires<[IsThumb2, HasVFP2]>;
2898 [ R0, R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, LR, CPSR ],
2899 hasSideEffects = 1, isBarrier = 1, isCodeGenOnly = 1 in {
2900 def t2Int_eh_sjlj_setjmp_nofp : Thumb2XI<(outs), (ins tGPR:$src, tGPR:$val),
2901 AddrModeNone, 0, NoItinerary, "", "",
2902 [(set R0, (ARMeh_sjlj_setjmp tGPR:$src, tGPR:$val))]>,
2903 Requires<[IsThumb2, NoVFP]>;
2907 //===----------------------------------------------------------------------===//
2908 // Control-Flow Instructions
2911 // FIXME: remove when we have a way to marking a MI with these properties.
2912 // FIXME: Should pc be an implicit operand like PICADD, etc?
2913 let isReturn = 1, isTerminator = 1, isBarrier = 1, mayLoad = 1,
2914 hasExtraDefRegAllocReq = 1, isCodeGenOnly = 1 in
2915 def t2LDMIA_RET: t2PseudoExpand<(outs GPR:$wb), (ins GPR:$Rn, pred:$p,
2916 reglist:$regs, variable_ops),
2917 4, IIC_iLoad_mBr, [],
2918 (t2LDMIA_UPD GPR:$wb, GPR:$Rn, pred:$p, reglist:$regs)>,
2919 RegConstraint<"$Rn = $wb">;
2921 let isBranch = 1, isTerminator = 1, isBarrier = 1 in {
2922 let isPredicable = 1 in
2923 def t2B : T2XI<(outs), (ins uncondbrtarget:$target), IIC_Br,
2925 [(br bb:$target)]> {
2926 let Inst{31-27} = 0b11110;
2927 let Inst{15-14} = 0b10;
2931 let Inst{26} = target{19};
2932 let Inst{11} = target{18};
2933 let Inst{13} = target{17};
2934 let Inst{21-16} = target{16-11};
2935 let Inst{10-0} = target{10-0};
2938 let isNotDuplicable = 1, isIndirectBranch = 1 in {
2939 def t2BR_JT : t2PseudoInst<(outs),
2940 (ins GPR:$target, GPR:$index, i32imm:$jt, i32imm:$id),
2942 [(ARMbr2jt GPR:$target, GPR:$index, tjumptable:$jt, imm:$id)]>;
2944 // FIXME: Add a non-pc based case that can be predicated.
2945 def t2TBB_JT : t2PseudoInst<(outs),
2946 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2949 def t2TBH_JT : t2PseudoInst<(outs),
2950 (ins GPR:$index, i32imm:$jt, i32imm:$id),
2953 def t2TBB : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2954 "tbb", "\t[$Rn, $Rm]", []> {
2957 let Inst{31-20} = 0b111010001101;
2958 let Inst{19-16} = Rn;
2959 let Inst{15-5} = 0b11110000000;
2960 let Inst{4} = 0; // B form
2964 def t2TBH : T2I<(outs), (ins GPR:$Rn, GPR:$Rm), IIC_Br,
2965 "tbh", "\t[$Rn, $Rm, lsl #1]", []> {
2968 let Inst{31-20} = 0b111010001101;
2969 let Inst{19-16} = Rn;
2970 let Inst{15-5} = 0b11110000000;
2971 let Inst{4} = 1; // H form
2974 } // isNotDuplicable, isIndirectBranch
2976 } // isBranch, isTerminator, isBarrier
2978 // FIXME: should be able to write a pattern for ARMBrcond, but can't use
2979 // a two-value operand where a dag node expects two operands. :(
2980 let isBranch = 1, isTerminator = 1 in
2981 def t2Bcc : T2I<(outs), (ins brtarget:$target), IIC_Br,
2983 [/*(ARMbrcond bb:$target, imm:$cc)*/]> {
2984 let Inst{31-27} = 0b11110;
2985 let Inst{15-14} = 0b10;
2989 let Inst{25-22} = p;
2992 let Inst{26} = target{20};
2993 let Inst{11} = target{19};
2994 let Inst{13} = target{18};
2995 let Inst{21-16} = target{17-12};
2996 let Inst{10-0} = target{11-1};
2999 // Tail calls. The Darwin version of thumb tail calls uses a t2 branch, so
3001 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1 in {
3003 let Defs = [R0, R1, R2, R3, R9, R12, QQQQ0, QQQQ2, QQQQ3, PC],
3005 def tTAILJMPd: tPseudoExpand<(outs), (ins uncondbrtarget:$dst, variable_ops),
3007 (t2B uncondbrtarget:$dst)>,
3008 Requires<[IsThumb2, IsDarwin]>;
3012 let Defs = [ITSTATE] in
3013 def t2IT : Thumb2XI<(outs), (ins it_pred:$cc, it_mask:$mask),
3014 AddrModeNone, 2, IIC_iALUx,
3015 "it$mask\t$cc", "", []> {
3016 // 16-bit instruction.
3017 let Inst{31-16} = 0x0000;
3018 let Inst{15-8} = 0b10111111;
3023 let Inst{3-0} = mask;
3026 // Branch and Exchange Jazelle -- for disassembly only
3028 def t2BXJ : T2I<(outs), (ins rGPR:$func), NoItinerary, "bxj", "\t$func",
3029 [/* For disassembly only; pattern left blank */]> {
3030 let Inst{31-27} = 0b11110;
3032 let Inst{25-20} = 0b111100;
3033 let Inst{15-14} = 0b10;
3037 let Inst{19-16} = func;
3040 // Change Processor State is a system instruction -- for disassembly and
3042 // FIXME: Since the asm parser has currently no clean way to handle optional
3043 // operands, create 3 versions of the same instruction. Once there's a clean
3044 // framework to represent optional operands, change this behavior.
3045 class t2CPS<dag iops, string asm_op> : T2XI<(outs), iops, NoItinerary,
3046 !strconcat("cps", asm_op),
3047 [/* For disassembly only; pattern left blank */]> {
3053 let Inst{31-27} = 0b11110;
3055 let Inst{25-20} = 0b111010;
3056 let Inst{19-16} = 0b1111;
3057 let Inst{15-14} = 0b10;
3059 let Inst{10-9} = imod;
3061 let Inst{7-5} = iflags;
3062 let Inst{4-0} = mode;
3066 def t2CPS3p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags, i32imm:$mode),
3067 "$imod.w\t$iflags, $mode">;
3068 let mode = 0, M = 0 in
3069 def t2CPS2p : t2CPS<(ins imod_op:$imod, iflags_op:$iflags),
3070 "$imod.w\t$iflags">;
3071 let imod = 0, iflags = 0, M = 1 in
3072 def t2CPS1p : t2CPS<(ins i32imm:$mode), "\t$mode">;
3074 // A6.3.4 Branches and miscellaneous control
3075 // Table A6-14 Change Processor State, and hint instructions
3076 // Helper class for disassembly only.
3077 class T2I_hint<bits<8> op7_0, string opc, string asm>
3078 : T2I<(outs), (ins), NoItinerary, opc, asm,
3079 [/* For disassembly only; pattern left blank */]> {
3080 let Inst{31-20} = 0xf3a;
3081 let Inst{19-16} = 0b1111;
3082 let Inst{15-14} = 0b10;
3084 let Inst{10-8} = 0b000;
3085 let Inst{7-0} = op7_0;
3088 def t2NOP : T2I_hint<0b00000000, "nop", ".w">;
3089 def t2YIELD : T2I_hint<0b00000001, "yield", ".w">;
3090 def t2WFE : T2I_hint<0b00000010, "wfe", ".w">;
3091 def t2WFI : T2I_hint<0b00000011, "wfi", ".w">;
3092 def t2SEV : T2I_hint<0b00000100, "sev", ".w">;
3094 def t2DBG : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "dbg", "\t$opt", []> {
3095 let Inst{31-20} = 0xf3a;
3096 let Inst{15-14} = 0b10;
3098 let Inst{10-8} = 0b000;
3099 let Inst{7-4} = 0b1111;
3102 let Inst{3-0} = opt;
3105 // Secure Monitor Call is a system instruction -- for disassembly only
3106 // Option = Inst{19-16}
3107 def t2SMC : T2I<(outs), (ins imm0_15:$opt), NoItinerary, "smc", "\t$opt",
3108 [/* For disassembly only; pattern left blank */]> {
3109 let Inst{31-27} = 0b11110;
3110 let Inst{26-20} = 0b1111111;
3111 let Inst{15-12} = 0b1000;
3114 let Inst{19-16} = opt;
3117 class T2SRS<bits<12> op31_20,
3118 dag oops, dag iops, InstrItinClass itin,
3119 string opc, string asm, list<dag> pattern>
3120 : T2I<oops, iops, itin, opc, asm, pattern> {
3121 let Inst{31-20} = op31_20{11-0};
3124 let Inst{4-0} = mode{4-0};
3127 // Store Return State is a system instruction -- for disassembly only
3128 def t2SRSDBW : T2SRS<0b111010000010,
3129 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp!, $mode",
3130 [/* For disassembly only; pattern left blank */]>;
3131 def t2SRSDB : T2SRS<0b111010000000,
3132 (outs),(ins i32imm:$mode),NoItinerary,"srsdb","\tsp, $mode",
3133 [/* For disassembly only; pattern left blank */]>;
3134 def t2SRSIAW : T2SRS<0b111010011010,
3135 (outs),(ins i32imm:$mode),NoItinerary,"srsia","\tsp!, $mode",
3136 [/* For disassembly only; pattern left blank */]>;
3137 def t2SRSIA : T2SRS<0b111010011000,
3138 (outs), (ins i32imm:$mode),NoItinerary,"srsia","\tsp, $mode",
3139 [/* For disassembly only; pattern left blank */]>;
3141 // Return From Exception is a system instruction -- for disassembly only
3143 class T2RFE<bits<12> op31_20, dag oops, dag iops, InstrItinClass itin,
3144 string opc, string asm, list<dag> pattern>
3145 : T2I<oops, iops, itin, opc, asm, pattern> {
3146 let Inst{31-20} = op31_20{11-0};
3149 let Inst{19-16} = Rn;
3150 let Inst{15-0} = 0xc000;
3153 def t2RFEDBW : T2RFE<0b111010000011,
3154 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn!",
3155 [/* For disassembly only; pattern left blank */]>;
3156 def t2RFEDB : T2RFE<0b111010000001,
3157 (outs), (ins GPR:$Rn), NoItinerary, "rfedb", "\t$Rn",
3158 [/* For disassembly only; pattern left blank */]>;
3159 def t2RFEIAW : T2RFE<0b111010011011,
3160 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn!",
3161 [/* For disassembly only; pattern left blank */]>;
3162 def t2RFEIA : T2RFE<0b111010011001,
3163 (outs), (ins GPR:$Rn), NoItinerary, "rfeia", "\t$Rn",
3164 [/* For disassembly only; pattern left blank */]>;
3166 //===----------------------------------------------------------------------===//
3167 // Non-Instruction Patterns
3170 // 32-bit immediate using movw + movt.
3171 // This is a single pseudo instruction to make it re-materializable.
3172 // FIXME: Remove this when we can do generalized remat.
3173 let isReMaterializable = 1, isMoveImm = 1 in
3174 def t2MOVi32imm : PseudoInst<(outs rGPR:$dst), (ins i32imm:$src), IIC_iMOVix2,
3175 [(set rGPR:$dst, (i32 imm:$src))]>,
3176 Requires<[IsThumb, HasV6T2]>;
3178 // Pseudo instruction that combines movw + movt + add pc (if pic).
3179 // It also makes it possible to rematerialize the instructions.
3180 // FIXME: Remove this when we can do generalized remat and when machine licm
3181 // can properly the instructions.
3182 let isReMaterializable = 1 in {
3183 def t2MOV_ga_pcrel : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3185 [(set rGPR:$dst, (ARMWrapperPIC tglobaladdr:$addr))]>,
3186 Requires<[IsThumb2, UseMovt]>;
3188 def t2MOV_ga_dyn : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr),
3190 [(set rGPR:$dst, (ARMWrapperDYN tglobaladdr:$addr))]>,
3191 Requires<[IsThumb2, UseMovt]>;
3194 // ConstantPool, GlobalAddress, and JumpTable
3195 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2LEApcrel tglobaladdr :$dst)>,
3196 Requires<[IsThumb2, DontUseMovt]>;
3197 def : T2Pat<(ARMWrapper tconstpool :$dst), (t2LEApcrel tconstpool :$dst)>;
3198 def : T2Pat<(ARMWrapper tglobaladdr :$dst), (t2MOVi32imm tglobaladdr :$dst)>,
3199 Requires<[IsThumb2, UseMovt]>;
3201 def : T2Pat<(ARMWrapperJT tjumptable:$dst, imm:$id),
3202 (t2LEApcrelJT tjumptable:$dst, imm:$id)>;
3204 // Pseudo instruction that combines ldr from constpool and add pc. This should
3205 // be expanded into two instructions late to allow if-conversion and
3207 let canFoldAsLoad = 1, isReMaterializable = 1 in
3208 def t2LDRpci_pic : PseudoInst<(outs rGPR:$dst), (ins i32imm:$addr, pclabel:$cp),
3210 [(set rGPR:$dst, (ARMpic_add (load (ARMWrapper tconstpool:$addr)),
3212 Requires<[IsThumb2]>;
3214 //===----------------------------------------------------------------------===//
3215 // Move between special register and ARM core register -- for disassembly only
3218 class T2SpecialReg<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3219 dag oops, dag iops, InstrItinClass itin,
3220 string opc, string asm, list<dag> pattern>
3221 : T2I<oops, iops, itin, opc, asm, pattern> {
3222 let Inst{31-20} = op31_20{11-0};
3223 let Inst{15-14} = op15_14{1-0};
3224 let Inst{12} = op12{0};
3227 class T2MRS<bits<12> op31_20, bits<2> op15_14, bits<1> op12,
3228 dag oops, dag iops, InstrItinClass itin,
3229 string opc, string asm, list<dag> pattern>
3230 : T2SpecialReg<op31_20, op15_14, op12, oops, iops, itin, opc, asm, pattern> {
3232 let Inst{11-8} = Rd;
3233 let Inst{19-16} = 0b1111;
3236 def t2MRS : T2MRS<0b111100111110, 0b10, 0,
3237 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, cpsr",
3238 [/* For disassembly only; pattern left blank */]>;
3239 def t2MRSsys : T2MRS<0b111100111111, 0b10, 0,
3240 (outs rGPR:$Rd), (ins), NoItinerary, "mrs", "\t$Rd, spsr",
3241 [/* For disassembly only; pattern left blank */]>;
3243 // Move from ARM core register to Special Register
3245 // No need to have both system and application versions, the encodings are the
3246 // same and the assembly parser has no way to distinguish between them. The mask
3247 // operand contains the special register (R Bit) in bit 4 and bits 3-0 contains
3248 // the mask with the fields to be accessed in the special register.
3249 def t2MSR : T2SpecialReg<0b111100111000 /* op31-20 */, 0b10 /* op15-14 */,
3250 0 /* op12 */, (outs), (ins msr_mask:$mask, rGPR:$Rn),
3251 NoItinerary, "msr", "\t$mask, $Rn",
3252 [/* For disassembly only; pattern left blank */]> {
3255 let Inst{19-16} = Rn;
3256 let Inst{20} = mask{4}; // R Bit
3258 let Inst{11-8} = mask{3-0};
3261 //===----------------------------------------------------------------------===//
3262 // Move between coprocessor and ARM core register
3265 class t2MovRCopro<bits<4> Op, string opc, bit direction, dag oops, dag iops,
3267 : T2Cop<Op, oops, iops,
3268 !strconcat(opc, "\t$cop, $opc1, $Rt, $CRn, $CRm, $opc2"),
3270 let Inst{27-24} = 0b1110;
3271 let Inst{20} = direction;
3281 let Inst{15-12} = Rt;
3282 let Inst{11-8} = cop;
3283 let Inst{23-21} = opc1;
3284 let Inst{7-5} = opc2;
3285 let Inst{3-0} = CRm;
3286 let Inst{19-16} = CRn;
3289 class t2MovRRCopro<bits<4> Op, string opc, bit direction,
3290 list<dag> pattern = []>
3292 (ins p_imm:$cop, imm0_15:$opc1, GPR:$Rt, GPR:$Rt2, c_imm:$CRm),
3293 !strconcat(opc, "\t$cop, $opc1, $Rt, $Rt2, $CRm"), pattern> {
3294 let Inst{27-24} = 0b1100;
3295 let Inst{23-21} = 0b010;
3296 let Inst{20} = direction;
3304 let Inst{15-12} = Rt;
3305 let Inst{19-16} = Rt2;
3306 let Inst{11-8} = cop;
3307 let Inst{7-4} = opc1;
3308 let Inst{3-0} = CRm;
3311 /* from ARM core register to coprocessor */
3312 def t2MCR : t2MovRCopro<0b1110, "mcr", 0,
3314 (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3315 c_imm:$CRm, imm0_7:$opc2),
3316 [(int_arm_mcr imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3317 imm:$CRm, imm:$opc2)]>;
3318 def t2MCR2 : t2MovRCopro<0b1111, "mcr2", 0,
3319 (outs), (ins p_imm:$cop, imm0_7:$opc1, GPR:$Rt, c_imm:$CRn,
3320 c_imm:$CRm, imm0_7:$opc2),
3321 [(int_arm_mcr2 imm:$cop, imm:$opc1, GPR:$Rt, imm:$CRn,
3322 imm:$CRm, imm:$opc2)]>;
3324 /* from coprocessor to ARM core register */
3325 def t2MRC : t2MovRCopro<0b1110, "mrc", 1,
3326 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3327 c_imm:$CRm, imm0_7:$opc2), []>;
3329 def t2MRC2 : t2MovRCopro<0b1111, "mrc2", 1,
3330 (outs GPR:$Rt), (ins p_imm:$cop, imm0_7:$opc1, c_imm:$CRn,
3331 c_imm:$CRm, imm0_7:$opc2), []>;
3333 def : T2v6Pat<(int_arm_mrc imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3334 (t2MRC imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3336 def : T2v6Pat<(int_arm_mrc2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2),
3337 (t2MRC2 imm:$cop, imm:$opc1, imm:$CRn, imm:$CRm, imm:$opc2)>;
3340 /* from ARM core register to coprocessor */
3341 def t2MCRR : t2MovRRCopro<0b1110, "mcrr", 0,
3342 [(int_arm_mcrr imm:$cop, imm:$opc1, GPR:$Rt, GPR:$Rt2,
3344 def t2MCRR2 : t2MovRRCopro<0b1111, "mcrr2", 0,
3345 [(int_arm_mcrr2 imm:$cop, imm:$opc1, GPR:$Rt,
3346 GPR:$Rt2, imm:$CRm)]>;
3347 /* from coprocessor to ARM core register */
3348 def t2MRRC : t2MovRRCopro<0b1110, "mrrc", 1>;
3350 def t2MRRC2 : t2MovRRCopro<0b1111, "mrrc2", 1>;
3352 //===----------------------------------------------------------------------===//
3353 // Other Coprocessor Instructions.
3356 def tCDP : T2Cop<0b1110, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3357 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3358 "cdp\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3359 [(int_arm_cdp imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3360 imm:$CRm, imm:$opc2)]> {
3361 let Inst{27-24} = 0b1110;
3370 let Inst{3-0} = CRm;
3372 let Inst{7-5} = opc2;
3373 let Inst{11-8} = cop;
3374 let Inst{15-12} = CRd;
3375 let Inst{19-16} = CRn;
3376 let Inst{23-20} = opc1;
3379 def t2CDP2 : T2Cop<0b1111, (outs), (ins p_imm:$cop, imm0_15:$opc1,
3380 c_imm:$CRd, c_imm:$CRn, c_imm:$CRm, imm0_7:$opc2),
3381 "cdp2\t$cop, $opc1, $CRd, $CRn, $CRm, $opc2",
3382 [(int_arm_cdp2 imm:$cop, imm:$opc1, imm:$CRd, imm:$CRn,
3383 imm:$CRm, imm:$opc2)]> {
3384 let Inst{27-24} = 0b1110;
3393 let Inst{3-0} = CRm;
3395 let Inst{7-5} = opc2;
3396 let Inst{11-8} = cop;
3397 let Inst{15-12} = CRd;
3398 let Inst{19-16} = CRn;
3399 let Inst{23-20} = opc1;
3404 //===----------------------------------------------------------------------===//
3405 // Non-Instruction Patterns
3408 // SXT/UXT with no rotate
3409 let AddedComplexity = 16 in {
3410 def : T2Pat<(and rGPR:$Rm, 0x000000FF), (t2UXTB rGPR:$Rm, 0)>,
3411 Requires<[IsThumb2]>;
3412 def : T2Pat<(and rGPR:$Rm, 0x0000FFFF), (t2UXTH rGPR:$Rm, 0)>,
3413 Requires<[IsThumb2]>;
3414 def : T2Pat<(and rGPR:$Rm, 0x00FF00FF), (t2UXTB16 rGPR:$Rm, 0)>,
3415 Requires<[HasT2ExtractPack, IsThumb2]>;
3416 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0x00FF)),
3417 (t2UXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3418 Requires<[HasT2ExtractPack, IsThumb2]>;
3419 def : T2Pat<(add rGPR:$Rn, (and rGPR:$Rm, 0xFFFF)),
3420 (t2UXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3421 Requires<[HasT2ExtractPack, IsThumb2]>;
3424 def : T2Pat<(sext_inreg rGPR:$Src, i8), (t2SXTB rGPR:$Src, 0)>,
3425 Requires<[IsThumb2]>;
3426 def : T2Pat<(sext_inreg rGPR:$Src, i16), (t2SXTH rGPR:$Src, 0)>,
3427 Requires<[IsThumb2]>;
3428 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i8)),
3429 (t2SXTAB rGPR:$Rn, rGPR:$Rm, 0)>,
3430 Requires<[HasT2ExtractPack, IsThumb2]>;
3431 def : T2Pat<(add rGPR:$Rn, (sext_inreg rGPR:$Rm, i16)),
3432 (t2SXTAH rGPR:$Rn, rGPR:$Rm, 0)>,
3433 Requires<[HasT2ExtractPack, IsThumb2]>;